The fifty pence coin was introduced in Ireland on February 17,1970 and is a seven sided coin, an equilateral curve heptagon of constant breadth (3 centimetres) and mass 13.5 grams.
The fifty pence coin was introduced in Ireland on February 17,1970. The fifty pence coin is a seven sided coin. The fifty pence coin is an equilateral curve heptagon of constant breadth (3 centimetres). The fifty pence coin is mass 13.5 grams.