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 The coins were withdrawn when smaller 5p and 10p coins were introduced in 1990 and 1992 respectively.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 and have ceased to be legal tender. <nowiki>* The specifications and dates of 5p, 10p, and 50p coins refer to the larger sizes issued in 1968 and 1969 respectively. † The specification refers to the round coin issued from 1983–2016. Although obsolete, this coin is still redeemable at banks and still legal tender on the Isle of Man.</nowiki> All modern British coins feature a profile of the current monarch's head on the obverse. There has been only one monarch since decimalisation, Queen Elizabeth II, so her head appears on all decimal coins, facing to the right (see also Monarch's head,