Both coins are from pre-decimal Britain. The florin is worth two shillings, or 24 pence, while a half-crown is worth 30 pence
There were no New Zealand Florin coins minted from 1954 to 1960 inclusive. There were no New Zealand Halfcrown coins minted from 1954 to 1960 inclusive.
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The British Threepence was first issued around 1550 and last issued in 1967. The British Sixpence was first issued around 1550 and last issued in 1967. The British Florin (Two Shillings) was first issued in 1848 and last issued in 1967. The British Halfcrown (Two Shillings and Sixpence) was first issued around 1526 and last issued in 1967.
British silver coins minted in 1894 included the Crown (Five Shillings), Halfcrown (Two Shillings and Sixpence), Florin (Two Shillings), Shilling, Sixpence and Threepence.
Many British coins were once made of silver. Threepence, Groat, Sixpence, Shilling, Florin, Halfcrown, Double Florin, Crown, Maundy Coins amongst others. If you go back in time far enough, even pennies were silver. From 1947 onwards, no British general circulation coin contains any silver.
There was no 1805 British Halfcrown minted.
The last British Halfcrown was minted in 1970.
Halfcrown coins were never minted in Australia.
The last British Halfcrown was minted in 1970.
Australia has never issued a Halfcrown coin.
A "Tanner" is a British colloquial term for a Sixpence. A "Halfcrown" is Two Shillings and Sixpence. There are five Sixpences (Tanners) in a Halfcrown.
Such a coin does not exist. The last Eire (Irish) Halfcrown was issued in 1967. The Halfcrown was withdrawn and demonetised after the introduction of decimal currency in 1971.