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
Legal tender of this are: Individual coins or banknotes can be demonetised and cease to be legal tender (for example, the pre-decimal United Kingdom farthing or the Bank of England 1 pound note), but the Bank of England does redeem all Bank of England banknotes by exchanging them for legal tender currency at its counters in London (or by post) regardless of how old they are. Banknotes issued by retail banks in the UK (Scotland and Northern Ireland) are not legal tender, but one of the criteria for legal protection under the Forgery and Counterfeiting Act is that banknotes must be payable