Decimal Day weights and measures.) Around the time of Decimalisation Day, "Decimal Adders" and other converters were available to help people convert between the old and new coins. The following is a table showing conversions between the decimal and pre-decimal systems. All pre-decimal coins (except for certain non-circulating coins such as crowns, sovereigns, and double florins which were explicitly excluded from demonetisation) are now no longer legal tender. Public outcry at the proposed demise of the old sixpence (6d), worth exactly p and originally slated for early withdrawal, postponed its withdrawal until June 1980. Shillings and florins, together with their same-sized 5p
Halfpenny (Irish pre-decimal coin) or a ram, and the sow was chosen. The obverse featured the Irish harp. From 1928 to 1937 the date was split either side of the harp with the name "Saorstát Éireann" circling around. From 1938 to 1969 the inscription changed to "Éire" on the left of the harp and the date on the right. Halfpenny (Irish pre-decimal coin) The halfpenny (d) () coin was the second smallest denomination of the pre-decimal Irish pound, worth of a pound or of a shilling. First issued in 1928 it ceased to be legal tender on 1 August 1969. The coin measured in