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 The coins were withdrawn when smaller 5p and 10p coins were introduced in 1990 and 1992 respectively.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
Decimal Day the 1s, 2s and 10s coins, were called in during the initial process between 1969 and 1972; the ten shilling coin, which, as recently issued and in any event equivalent to 50p, was permitted to remain outstanding (though due to silver content, the coin did not circulate). The 1s and 2s were recalled in 1993 and 1994 respectively. Pre-decimal Irish coins may still be redeemed at their face value equivalent in euro at the Central Bank in Dublin. Pre-decimal Irish coins and stamps' values were denoted with Irish language abbreviations ("scilling" ("shilling", abbreviated ""s"") and "pingin" ("penny", abbreviated ""p"")) rather