Australian pound became $1 and 1s became 10c. The conversion rate was problematic for the pre-decimal penny since the shilling was divided into twelve pence. An exchange rate of $2.40:£1 would have allowed for accurate conversion down to the penny, with one penny becoming one cent; however, the Government thought it more important that the new currency unit be more valuable than the United States dollar which it would not have been under a 2.4:1 ratio. Amounts less than a shilling were converted as follows: In 1855, gold full and half sovereigns (worth respectively one pound sterling and ten shillings) were first
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