Ireland decimal 5p - large and small types

O’Brien Coin Guide: Irish Decimal Fivepence

The five pence (5p) coin (Irish: cúig phingin) was a sub-division of the Irish pound. It was introduced in Ireland on Decimal Day, 15th February 1971 and re-used the design on the shilling coin first produced for the Irish Free State in 1928.  Due to the similarity in size and weight, many of the old shillings…