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Twenty Pence (British Coin)
The United Kingdom, British decimal twenty pence coin (often shortened to 20p in writing and speech) is a denomination of Coins of the United Kingdom, sterling coinage worth of a Pound sterling, pound. Like the Fifty pence (British coin), 50p coin, it is an Curve of constant width, equilateral curve heptagon. Its obverse has featured the profile of Queen Elizabeth II since the coin's introduction on 9 June 1982. Four different portraits of the Queen have been used; the latest design by Jody Clark was introduced in 2015. The second and current reverse (as of 2019), featuring a segment of the Royal coat of arms of the United Kingdom, Royal Shield, was introduced in 2008. As of March 2014 there were an estimated 2,765 million 20p coins in circulation, with an estimated face value of £553.025 million. Of this estimated number, between 50,000 and 200,000 of these coins are undated Mule (coin), mule coins minted in 2008 after the dies for the old and new designs were accidentally mixe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupro-nickel
Cupronickel or copper-nickel (CuNi) is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. The copper content typically varies from 60 to 90 percent. (Monel is a nickel-copper alloy that contains a minimum of 52 percent nickel.) Despite its high copper content, cupronickel is silver in colour. Cupronickel is highly resistant to corrosion by salt water, and is therefore used for piping, heat exchangers and condensers in seawater systems, as well as for marine hardware. It is sometimes used for the propellers, propeller shafts, and hulls of high-quality boats. Other uses include military equipment and chemical, petrochemical, and electrical industries. Another common 20th-century use of cupronickel was silver-coloured coins. For this use, the typical alloy has 3:1 copper to nickel ratio, with very small amounts of manganese. In the past, true silver coins were debased with cupronickel, such as coins of the pound sterling from 1947 onwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two Pounds (British Coin)
The United Kingdom, British two pound (£2) coin is a denomination of Coins of the United Kingdom, sterling coinage. Its obverse has featured the profile of Queen Elizabeth II since the coin’s introduction. Three different portraits of the Queen have been used, with the current design by Jody Clark being introduced in 2015. The reverse design features Britannia. The coin was introduced on 15 June 1998 (coins minted 1997) after a review of the United Kingdom's coinage decided that a general-circulation £2 coin was needed.Two Pound Coin Designs and Specifications Royal Mint The new bi-metallic coin design replaced a series of commemorative, uni-metallic coins which were issued between 1986 and 1996 to celebrate special occasions. Although legal tender, tho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
