Pen And Pencil Sketches Of English Society
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A pen is a common writing instrument that applies
ink Ink is a gel, sol, or solution that contains at least one colorant, such as a dye or pigment, and is used to color a surface to produce an image, text, or design. Ink is used for drawing or writing with a pen, brush, reed pen, or quill. Thi ...
to a surface, usually paper, for writing or
drawing Drawing is a form of visual art in which an artist uses instruments to mark paper or other two-dimensional surface. Drawing instruments include graphite pencils, pen and ink, various kinds of paints, inked brushes, colored pencils, crayons, ...
. Early pens such as reed pens, quill pens, dip pens and
ruling pen A ruling pen is a drawing instrument for drawing with ink or with other drawing fluids. Originally used for technical drawings in engineering and cartography together with straight rulers and French curves, it is today used for specific uses, such ...
s held a small amount of ink on a nib or in a small void or cavity which had to be periodically recharged by dipping the tip of the pen into an inkwell. Today, such pens find only a small number of specialized uses, such as in
illustration An illustration is a decoration, interpretation or visual explanation of a text, concept or process, designed for integration in print and digital published media, such as posters, flyers, magazines, books, teaching materials, animations, vid ...
and
calligraphy Calligraphy (from el, link=y, καλλιγραφία) is a visual art related to writing. It is the design and execution of lettering with a pen, ink brush, or other writing instrument. Contemporary calligraphic practice can be defined as "t ...
. Reed pens, quill pens and dip pens, which were used for writing, have been replaced by
ballpoint A ballpoint pen, also known as a biro (British English), ball pen (Hong Kong, Indian and Philippine English), or dot pen ( Nepali) is a pen that dispenses ink (usually in paste form) over a metal ball at its point, i.e. over a "ball point". ...
pens, rollerball pens, fountain pens and felt or ceramic tip pens. Ruling pens, which were used for technical drawing and cartography, have been replaced by
technical pen A technical pen is a specialized instrument used by an engineer, architect, or drafter to make lines of constant width for architectural, engineering, or technical drawings. " Rapidograph" is a trademarked name for one type of technical pen. T ...
s such as the
Rapidograph Rotring (stylized rOtring) is a former German manufacturing company of technical drawing tools and writing implements. Established in 1928 as a fountain pen manufacturer, Rotring is currently a brand owned by Newell Brands after its acquisition ...
. All of these modern pens contain internal ink reservoirs, such that they do not need to be dipped in ink while writing.


Types


Modern

Pens commonly used today can be categorized based on the mechanism of the writing tip and the type of ink: * A ballpoint pen dispenses a viscous oil-based ink by means of a small hard sphere, or ball, which rolls over the surface being written on. The ball is held captive in a socket at the tip of the pen with one half exposed and the other half immersed in ink from the pen's reservoir. When the ball rotates, it transfers the ink - which wets the ball - from the reservoir to the external surface. The ball is typically under a millimeter in diameter and made of brass, steel, or tungsten carbide. The ink, due to its high viscosity, does not permeate through paper and does not leave the tip of the pen by capillary action. As such, a bare minimum amount of ink is dispensed, with the result that the writing dries almost instantly and ink lasts longer than it does in other types of pen. Ballpoint pens are reliable, versatile and robust, and are available for a very wide range of prices. They have replaced fountain pens as the most common tool for everyday writing. * A gel pen works similarly to a ballpoint pen, in that it dispenses ink using a rolling ball held in the writing tip. However, unlike oil-based ballpoint pen ink, gel pen ink consists of a water-based
gel A gel is a semi-solid that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state, although the liquid phase may still di ...
that has a pigment suspended in it. Because the ink is thick and
opaque Opacity or opaque may refer to: * Impediments to (especially, visible) light: ** Opacities, absorption coefficients ** Opacity (optics), property or degree of blocking the transmission of light * Metaphors derived from literal optics: ** In lingui ...
, it shows up more clearly on dark or slick surfaces than the typical inks used in ballpoint or felt tip pens. Gel pens can be used for many types of writing and illustration. Since the gel medium eliminates the constraints of a soluble dye, many new colors are made possible, as well as some special types of ink; gel pens are available in a wide range of vibrant or saturated colors, in pastel colors, in
neon Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. It was discovered (along with krypton ...
colors, in metallic colors, in glitter inks, in glow-in-the-dark ink, and so on. * A
rollerball pen Roller ball pens or roll pens are pens which use ball point writing mechanisms with water-based liquid or gelled ink, as opposed to the oil-based viscous inks found in ballpoint pens. These less viscous inks, which tend to saturate more deeply ...
is a pen that dispenses a water-based ink through a ball tip similar to that of a ballpoint pen. As such, gel pens might be considered a subcategory of rollerball pens; however, due to the widespread knowledge and use of the term 'gel pen', 'rollerball' is in practice typically reserved for pens which use liquid ink. The lower viscosity of rollerball ink compared to oil-based ballpoint pen ink has several effects on the pen's performance. Since the ink flows more easily and is more easily absorbed into paper, more ink is dispensed in general. This changes the writing experience by lubricating the motion of the tip over the paper. It also results in a solid and uninterrupted line, since the diffusion of the ink through the paper fills small gaps that might otherwise be left by the ball point. Compared to ballpoint pens, which dispense a smaller amount of more viscous ink, the writing by a rollerball pen takes longer to dry on the page and can seep through thin paper such as to become visible on the opposite side. When the tip of a rollerball pen is held against paper, ink leaves the tip continually by capillary action in much the same way as would occur with a fountain pen. This can lead to ink blots or smears. The rollerball pen was initially designed to combine the convenience of a ballpoint pen with the smooth "wet ink" effect of a fountain pen. Refillable rollerball pens have recently become available; these generally use cartridges of fountain pen ink. * A fountain pen uses water-based liquid ink delivered through a '' nib'', which is in general a flat piece of metal with a thin slit extending inwards from the writing tip. Driven by gravity, the ink flows from a reservoir to the nib through a ''feed'', which is in general a specially shaped solid block of material with channels and grooves cut into it. The feed delivers the ink to the slit in the nib. While writing, ink is pulled out of this slit by capillary action. A fountain pen nib, unlike the tip of a ballpoint, gel or rollerball pen, has no moving parts. A fountain pen reservoir can be refillable or disposable; the disposable type is called an ''ink cartridge''. A pen with a refillable reservoir may have a mechanism such as a
piston A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tig ...
to draw ink from a bottle through the nib, or it may require refilling with an eye dropper. Refillable reservoirs, also known as ''cartridge converters'', are available for some pens otherwise designed to use disposable cartridges. A fountain pen can be used with permanent or non-permanent inks. * A felt-tip pen, or
marker The term Marker may refer to: Common uses * Marker (linguistics), a morpheme that indicates some grammatical function * Marker (telecommunications), a special-purpose computer * Boundary marker, an object that identifies a land boundary * Marke ...
, has a porous tip made of fibrous material, which normally remains saturated with ink from the reservoir. As ink leaves the tip, new ink is drawn from the reservoir - which often consists of a large volume of a similar porous material to that used in the tip - by capillary action and gravity. As with a fountain pen, ink leaves the tip of a felt tip pen by capillary action when writing on a porous surface. However, unlike fountain pens, many markers can also reliably write on slick impermeable surfaces that are wet by the ink, and in such applications ink typically does not continually leave the pen as it is held against the writing surface. The smallest, finest-tipped felt-tip pens are used for writing on paper. Medium-sized felt-tips are often used by children for coloring and drawing. Larger types, often called "markers", are used for writing in larger sizes, often on surfaces other than paper such as corrugated boxes and whiteboards. Specialized felt-tip pens referred to by names such as "liquid chalk" or "chalkboard markers" are used to write on chalkboards. Markers with wide tips and bright but transparent ink, called '' highlighters'', are used to highlight text that has already been written or printed. Pens designed for children or for temporary writing (as with a whiteboard or overhead projector) typically use non-permanent inks. Large markers used to label shipping cases or other packages are usually
permanent marker A permanent marker or indelible marker is a type of marker pen that is used to create permanent or semi-permanent writing on an object. In general, the ink comprises a main carrier solvent, a glyceride, a pyrrolidone, a resin and a colorant, ma ...
s. *A
brush pen A , also known as a brush pen, is a cartridge-based writing implement used in East Asian calligraphy; it is, in essence, an ink brush analogue to a fountain pen. Overview The Japanese manufacturing company Kuretake was the first to launch a bru ...
is a pen whose writing tip consists of a small
brush A brush is a common tool with bristles, wire or other filaments. It generally consists of a handle or block to which filaments are affixed in either a parallel or perpendicular orientation, depending on the way the brush is to be gripped durin ...
fed with ink from a liquid ink reservoir similar to those used in fountain pens and rollerball pens. Brush pens might be either refillable or disposable, and might use either water-based or waterproof ink. The most significant functional difference of brush pens from felt-tip pens is the far greater
compliance Compliance can mean: Healthcare * Compliance (medicine), a patient's (or doctor's) adherence to a recommended course of treatment * Compliance (physiology), the tendency of a hollow organ to resist recoil toward its original dimensions (this is a ...
of the tip. Brush pens are an obvious alternative to ink brushes for Chinese calligraphy and
Japanese calligraphy also called is a form of calligraphy, or artistic writing, of the Japanese language. Written Japanese was originally based on Chinese characters only, but the advent of the hiragana and katakana Japanese syllabaries resulted in intrin ...
, but are now also commonly used in other forms of calligraphy and by artists such as illustrators and cartoonists. The primary appeal of these pens to such artists is that they allow a great deal of line width variation in response to small changes in applied pressure. * A stylus pen, plural styli or styluses, is a
writing utensil A writing implement or writing instrument is an object used to produce writing. Writing consists of different figures, lines, and or forms. Most of these items can be also used for other functions such as painting, drawing and technical drawing, ...
which does not use ink, but rather makes marks primarily by creating scratches or indentations in the writing surface. As such, the tip often consists simply of a sharp metal point. Such tools are also used for other types of marking than writing, and for shaping or carving in, for example, pottery. The word stylus also refers to a pen-shaped computer accessory that is used to achieve greater precision when using
touchscreens A touchscreen or touch screen is the assembly of both an input ('touch panel') and output ('display') device. The touch panel is normally layered on the top of an electronic visual display of an information processing system. The display is often ...
than generally possible with a fingertip. There are products available that combine a ballpoint tip at one end and a touchscreen stylus at the other. File:Gel pen versus ballpoint pen.jpg, alt=Picture of writing tips of a gel pen and a ballpoint pen lying on a piece of paper next to lines created by each pen., Lines created by a gel pen (top) and a ballpoint pen (bottom) File:GelPen.jpg, A gel-based rollerball pen File:Fude pen.jpg, alt=Picture of a brush pen being used to apply ink to paper., A brush pen File:Fountain-pen-nib.jpg, alt=Picture of the writing tip of a fountain pen., The writing tip of a fountain pen File:Felt Tip.jpg, alt=Picture of the fibrous writing tip of a felt-tip pen, The writing tip of a
marker The term Marker may refer to: Common uses * Marker (linguistics), a morpheme that indicates some grammatical function * Marker (telecommunications), a special-purpose computer * Boundary marker, an object that identifies a land boundary * Marke ...
File:Lenovo-X61-Tablet-Mode.jpg, alt=Picture of a computer stylus lying on the touchscreen of a laptop folded backwards into tablet mode., Computer with computer stylus


Historic

These historic types of pens are no longer in common use as writing instruments, but may be used by calligraphers and other artists: * A dip pen (or '' nib pen'') consists of a metal nib with capillary channels, like that of a fountain pen, mounted on a handle or holder, often made of wood. A dip pen is called such because it usually has no ink reservoir and must therefore be repeatedly dipped into an
inkpot An inkwell is a small jar or container, often made of glass, porcelain, silver, brass, or pewter, used for holding ink in a place convenient for the person who is writing. The artist or writer dips the brush, quill, or dip pen into the inkwell ...
in order to recharge the nib with ink while drawing or writing. The dip pen has certain advantages over a fountain pen; it can use waterproof pigmented (particle-and-binder-based) inks, such as so-called '' India ink'', drawing ink, or acrylic inks, which would destroy a fountain pen by clogging, as well as the traditional
iron gall ink Iron gall ink (also known as common ink, standard ink, oak gall ink or iron gall nut ink) is a purple-black or brown-black ink made from iron salts and tannic acids from vegetable sources. It was the standard ink formulation used in Europe for t ...
, which can cause corrosion in a fountain pen. Dip pens are now mainly used in illustration,
calligraphy Calligraphy (from el, link=y, καλλιγραφία) is a visual art related to writing. It is the design and execution of lettering with a pen, ink brush, or other writing instrument. Contemporary calligraphic practice can be defined as "t ...
, and comics. A particularly fine-pointed type of dip pen known as a ''crowquill'' is a favorite instrument of artists such as David Stone Martin and Jay Lynch, because its flexible metal point can create a variety of delicate lines, textures and tones in response to variation of pressure while drawing. * The ink brush is the traditional writing implement in East Asian calligraphy. The body of the brush can be made from bamboo, or from rarer materials such as red sandalwood, glass, ivory, silver, and gold. The head of the brush can be made from the hair (or feathers) of a wide variety of animals, including the weasel, rabbit, deer, chicken, duck, goat, pig, and tiger. There is also a tradition both in China and in Japan of making a brush using the hair of a newborn, as a once-in-a-lifetime souvenir for the child. This practice is associated with the legend of an ancient Chinese scholar who ranked first in the Imperial examinations using such a personalized brush. Calligraphy brushes are widely considered an extension of the calligrapher's arm. Today, calligraphy may also be done using a pen, but pen calligraphy does not enjoy the same prestige as traditional brush calligraphy. * A quill is a pen made from a
flight feather Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the tail ...
of a large bird, most often a goose. To make a quill, a feather must be cured through aging or
heat-treatment Heat treating (or heat treatment) is a group of industrial process, industrial, thermal and metalworking, metalworking processes used to alter the physical property, physical, and sometimes chemical property, chemical, properties of a material. ...
, after which a nib is fashioned from the shaft by cutting a slit in it and carving away the sides to create a pointed tip. With practice, suitable feathers can be made into quills quickly and cheaply using no more than a small knife and a source of heat. Due to their easy availability, quills remained the writing instruments of choice in the west for a long time—from the 6th century to the 19th—before the metal dip pen, the fountain pen, and eventually the ballpoint pen came to be manufactured in large numbers. Quills, like later metal-nibbed dip pens, must periodically be dipped in ink while writing. * A reed pen is cut from a reed or bamboo, with a slit in a narrow tip. Its mechanism is essentially the same as that of a quill or a metal dip pen. The reed pen has almost disappeared but is still used by young school students in some parts of India and Pakistan, who learn to write with them on small timber boards known as "Takhti". File:Dip Pen.jpg, A dip pen File:Sumie.jpg, alt=Picture of an ink brush., An ink brush File:Quill pen.jpg, alt=Picture of a quill and a small bottle of ink on a table., Quill and ink File:Reed pen DSC 8999.jpg, alt=Picture of a reed pen., A reed pen


History

Ancient Egyptians had developed writing on papyrus scrolls when scribes used thin reed brushes or reed pens from the ''
Juncus maritimus ''Juncus maritimus'', known as the sea rush, is a species of rush that grows on coastlines. It is sometimes considered conspecific with '' Juncus kraussii''. It has a wide distribution across the western Palearctic realm (all of Europe, western ...
'' or sea rush. In his book ''A History of Writing'', Steven Roger Fischer suggests, on the basis of finds at Saqqara, that the reed pen might well have been used for writing on parchment as long ago as the First Dynasty, or around 3000 BC. Reed pens continued to be used until the Middle Ages, but were slowly replaced by quills from about the 7th century. The reed pen, made from reed or bamboo, is still used in some parts of Pakistan by young students and is used to write on small wooden boards. The reed pen survived until papyrus was replaced as a writing surface by animal skins, vellum and parchment. The smoother surface of skin allowed finer, smaller writing with a quill pen, derived from the flight feather. The quill pen was used in Qumran, Judea to write some of the Dead Sea Scrolls, which date back to around 100 BC. The scrolls were written in Hebrew dialects with bird feathers or quills. There is a specific reference to quills in the writings of
St. Isidore of Seville Isidore of Seville ( la, Isidorus Hispalensis; c. 560 – 4 April 636) was a Spanish scholar, theologian, and archbishop of Seville. He is widely regarded, in the words of 19th-century historian Montalembert, as "the last scholar of t ...
in the 7th century. Quill pens were still widely used in the eighteenth century, and were used to write and sign the Constitution of the United States in 1787. A copper nib was found in the ruins of
Pompeii Pompeii (, ) was an ancient city located in what is now the ''comune'' of Pompei near Naples in the Campania region of Italy. Pompeii, along with Herculaneum and many villas in the surrounding area (e.g. at Boscoreale, Stabiae), was buried ...
, showing that metal nibs were used in the year 79. There is also a reference to 'a silver pen to carry ink in', in
Samuel Pepys Samuel Pepys (; 23 February 1633 – 26 May 1703) was an English diarist and naval administrator. He served as administrator of the Royal Navy and Member of Parliament and is most famous for the diary he kept for a decade. Pepys had no mariti ...
' diary for August 1663. 'New invented' metal pens are advertised in ''The Times'' in 1792. A metal pen point was patented in 1803, but the patent was not commercially exploited. A patent for the manufacture of metal pens was advertised for sale by Bryan Donkin in 1811. John Mitchell of Birmingham started to mass-produce pens with metal nibs in 1822, and after that, the quality of steel nibs improved enough so that dip pens with metal nibs came into general use. The earliest historical record of a pen with a reservoir dates back to the 10th century AD. In 953, Ma'ād al-Mu'izz, the Fatimid Caliph of Egypt, demanded a pen which would not stain his hands or clothes, and was provided with a pen which held ink in a reservoir and delivered it to the nib. This pen may have been a fountain pen, but its mechanism remains unknown, and only one record mentioning it has been found. A later reservoir pen was developed in 1636. In his ''Deliciae Physico-Mathematicae'' (1636),
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...
inventor
Daniel Schwenter Daniel Schwenter (Schwender) (31 January 1585 – 19 January 1636) was a German Orientalist, mathematician, inventor, poet, and librarian. Biography Schwenter was born in Nuremberg. He was professor of oriental languages and mathematics at ...
described a pen made from two quills. One quill served as a reservoir for ink inside the other quill. The ink was sealed inside the quill with
cork Cork or CORK may refer to: Materials * Cork (material), an impermeable buoyant plant product ** Cork (plug), a cylindrical or conical object used to seal a container ***Wine cork Places Ireland * Cork (city) ** Metropolitan Cork, also known as G ...
. Ink was squeezed through a small hole to the writing point. In 1809, Bartholomew Folsch received a patent in England for a pen with an ink reservoir. A student in Paris, Romanian
Petrache Poenaru Petrache Poenaru (; 10 January 1799 – 2 October 1875) was a Romanian inventor of the Enlightenment era. Poenaru, who had studied in Paris and Vienna and, later, completed his specialized studies in England, was a mathematician, physicist, en ...
invented a fountain pen that used a quill as an ink reservoir. The
French Government The Government of France ( French: ''Gouvernement français''), officially the Government of the French Republic (''Gouvernement de la République française'' ), exercises executive power in France. It is composed of the Prime Minister, who ...
patented this in May 1827. Fountain pen patents and production then increased in the 1850s. The first patent on a ballpoint pen was issued on October 30, 1888, to John J Loud. In 1938, László Bíró, a Hungarian newspaper editor, with the help of his brother George, a chemist, began to design new types of pens, including one with a tiny
ball A ball is a round object (usually spherical, but can sometimes be ovoid) with several uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used f ...
in its tip that was free to turn in a socket. As the pen moved along the paper, the ball rotated, picking up ink from the ink cartridge and leaving it on the paper. Bíró filed a British patent on June 15, 1938. In 1940, the Bíró brothers and a friend, Juan Jorge Meyne, moved to Argentina, fleeing Nazi Germany. On June 17, 1943 they filed for another patent. They formed "Bíró Pens of Argentina", and by the summer of 1943, the first commercial models were available. Erasable ballpoint pens were introduced by Paper Mate in 1979, when the Erasermate was put on the market. Slavoljub Eduard Penkala, a naturalized Croatian engineer and inventor of
Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...
- Dutch origin from the
Kingdom of Croatia-Slavonia The Kingdom of Croatia-Slavonia ( hr, Kraljevina Hrvatska i Slavonija; hu, Horvát-Szlavónország or ; de-AT, Königreich Kroatien und Slawonien) was a nominally autonomous kingdom and constitutionally defined separate political nation with ...
in Austria-Hungary, became renowned for further development of the mechanical pencil (1906) – then called an "automatic pencil" – and the first solid-ink fountain pen (1907). Collaborating with an entrepreneur by the name of
Edmund Moster Edmund is a masculine given name or surname in the English language. The name is derived from the Old English elements ''ēad'', meaning "prosperity" or "riches", and ''mund'', meaning "protector". Persons named Edmund include: People Kings and ...
, he started the Penkala-Moster Company and built a pen-and-pencil factory that was one of the biggest in the world at the time. This company, now called ''TOZ-Penkala'', still exists today. "TOZ" stands for "''Tvornica olovaka Zagreb''", meaning " Zagreb Pencil Factory". In the 1960s, the fiber- or felt-tipped pen was invented by Yukio Horie of the Tokyo Stationery Company, Japan. Paper Mate's Flair was among the first felt-tip pens to hit the U.S. market in the 1960s, and it has been the leader ever since. Marker pens and highlighters, both similar to felt pens, have become popular in recent times. Rollerball pens were introduced in the early 1970s. They use a mobile ball and liquid ink to produce a smoother line. Technological advances during the late 1980s and early 1990s have improved the roller ball's overall performance. A porous point pen contains a point made of some porous material such as felt or ceramic. A high quality drafting pen will usually have a ceramic tip, since this wears well and does not broaden when pressure is applied while writing. Although the invention of the typewriter and personal computer with the
keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Musi ...
input method has offered another way to write, the pen is still the main means of writing. Many people like to use expensive types and brands of pens, including fountain pens, and these are sometimes regarded as a
status symbol A status symbol is a visible, external symbol of one's social position, an indicator of economic or social status. Many luxury goods are often considered status symbols. ''Status symbol'' is also a sociological term – as part of social and soci ...
.Guilfoil, John M. (August 17, 2008
The power of the pen
''Boston.com''
File:Schwenter - Deliciae physico-mathematicae oder Mathemat. und philosophische Erquickstunden, 1636 - 4696404.tif, ''Deliciae physico-mathematicae'', 1636 File:Vulcan Ink Pencil advertisement, 1915.jpg, 1915 advertisement for "Vulcan" Ink Pencils. File:Marker1.jpg, Modern marker pens.


See also

* Active pen * Counterfeit banknote detection pen * Digital pen * List of pen types, brands and companies * Pen spinning * Pencil *
Retractable pen A retractable pen is a type of ink pen that has a spring-loaded ink cartridge which retracts and extends outside a protective housing. By clicking downward on the top of the pen, the tip is extended and locks in place at the bottom of the housin ...
*
Space Pen The Space Pen (also known as the Zero Gravity Pen), marketed by Fisher Space Pen Company, is a pen that uses pressurized ink cartridges and is able to write in zero gravity, underwater, over wet and greasy paper, at any angle, and in a very wide r ...
*
Technical pen A technical pen is a specialized instrument used by an engineer, architect, or drafter to make lines of constant width for architectural, engineering, or technical drawings. " Rapidograph" is a trademarked name for one type of technical pen. T ...


References


External links


Writing Instrument Manufacturers Association
{{Authority control Domestic implements Office equipment Stationery