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Although commemorating the British Exhibition in New York, USA (at which The Royal Mint had a stand), these coins were all struck at the Royal Mint, with 18,000 being sold at the exhibition. Crown-sized medals were struck at the mint stand.
The standard weight of these coins was 10/11 troy ounce (436.4 grains). Under the Coinage Act of 1946, the composition changed from .500 silver to .750 copper/.250 nickel but the weight remained unchanged.
This coin was not included in demonetization legislation when decimalization was introduced in 1971. It has been confirmed by the Royal Mint that the coin remains legal tender, having been remonetized with a value of 25 pence.
The reverse design of this coin was that used for the Queen's Coronation crown in 1953 with the date being changed and having a reeded edge rather than incuse lettering. This design was also reused in 2014 to celebrate the first birthday of Prince George of Cambridge and again in 2022 as one of the first designs for the new King Charles III coinage.
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