The Irish one shilling coin was designed by Percy Metcalfe and featured a bull on the reverse.
On the other side(obverse) is the Irish harp, from 1928-1937 the date was split on either side of the with saorstát éireann
(irish freestate) and from 1939-1968 (the last year minted) éire was on the left of the harp and the
date on the right hand side.
The coin is 0.935 inches (23.7mm) in diameter - 1.77mm thick and weighs 5.66 grams
From 1928 until 1942 the coin was made from silver, the shilling is the smallest denomintion to be struck in silver, it contains 75% silver
and from 1951 until the last year minted - 1968 the coin was made of cupronickel - 75% copper and 25% nickel
The one shilling was worth 1/20 of a pound and there was 12 pennies in each shilling
It was first issued in 1928 and minted until 1968. Irish currency was decimalised in 1971 and these coins continued to circulated along with its replacement - the five pence until a smaller five pence was introduced in 1993 and the one shilling was withdrawn