it had not been in general circulation in any quantities since 1966, the coin would have survived Decimal Day, being fifty new pence in value. See also £sd References External links Coinage (Amendment) Act, 1966 Coinage (Dimensions and Designs) (Silver Coin in Respect of the Year 1966) Regulations, 1966 Irish Pound Coinage (Calling In) (No. 2) Order, 2001 Irish Coinage website - catalogue - 10 shillings ten shilling coin