Decimal Day and 10p coin equivalents, co-existed in circulation as valid currency until the early 1990s. In theory this included coins dating back to 1816; in practice the oldest were dated 1947, when these coins stopped containing silver. The coins were withdrawn when smaller 5p and 10p coins were introduced in 1990 and 1992 respectively. The face value of Maundy money coins was maintained, increasing all their face values by a factor of 2.4, as the coins continued to be legal tender as new pence. The numismatic value of each coin, though, greatly exceeds face value. The decimal halfpenny (p), introduced in
Coins of the pound sterling the decimal coinage with values of p, 5p and 10p respectively, were finally withdrawn in 1980, 1990 and 1993 respectively. However, the double florin and crown with values of 20p and 25p respectively have not been withdrawn. In the 1990s, the Royal Mint reduced the sizes of the 5p, 10p, and 50p coins. As a consequence, the oldest 5p coins in circulation date from 1990, the oldest 10p coins from 1992 and the oldest 50p coins come from 1997. Since 1997, many special commemorative designs of 50p have been issued. Some of these are found fairly frequently in circulation and