The copper "cartwheel" twopence is, by far, the largest British coin ever used in circulation. Only about 720,000 of these coins were produced in 1797, and surviving examples are rare as a result. The obverse shows King George III (of American Revolutionary War infamy) and the reverse shows a seated Britannia, the symbolic personification of Britain.
Copper twopence were issued to address Britain's coin shortage, a result of silver pennies no longer being produced. The government authorized Matthew Boulton, a businessman and manufacturer, to begin striking copper pennies and twopence in Soho, Birmingham. The "cartwheel" nickname grew popular due to their large size and thick outer rim, bearing a similarity to a wooden cart wheel.
Weighing in at 2 ounces, or 56.7 grams, it's 8 times the weight of a modern two pence coin (or 22 times heavier than a US penny!).
A signed Certificate of Authenticity will accompany your purchase. You will receive the exact item shown in the photos above. A display case is also included.