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Five Pence (other)
The United Kingdom, British decimal five pence coin (often shortened to 5p in writing and speech) is a denomination of Coins of the United Kingdom, sterling coinage worth five one-hundredths of a pound sterling, pound. Its obverse has featured the profile of Queen Elizabeth II since the coin’s introduction on 23 April 1968, replacing the Shilling (British coin), shilling in preparation for Decimal Day, decimalisation in 1971. It remained the same size as the one shilling coin, which also remained legal tender, until a smaller version was introduced in June 1990 with the older coins being withdrawn on 31 December 1990. Four different portraits of the Queen have been used, with the latest design by Jody Clark being introduced in 2015. The second and current reverse, featuring a segment of the Royal coat of arms of the United Kingdom, Royal Shield, was introduced in 2008. 5p coins are legal tender up to the sum of £5 when offered in repayment of a debt; however, the coin's legal ... [...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] |
