|
British Coin Fifty Pence
The British decimal fifty pence coin (often shortened to 50p in writing and speech) is a denomination of sterling coinage worth one half of a pound. Its obverse features the profile of the current Monarch since the coin's introduction in 1969. , five different royal portraits have been used. there were an estimated 920 million 50p coins in circulation. The coin has proved popular with coin collectors leading to numerous differing designs for both commemorative and circulating coins. Fifty pence coins are legal tender for amounts up to the sum of £10 when offered in repayment of a debt; however, the coin's legal tender status is not normally relevant for everyday transactions. History In 1967 the Deputy Master of the Royal Mint approached the Decimal Currency Board to ask for their advice on the introduction of a new coin. The 10-shilling note then in use was lasting only five months and it had been suggested that a coin, which could last fifty years, would be more economical ... [...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] |
