Lundy, an island in the Bristol Channel, gives us a modern example of tokens with a coin-like use and a purported exchange rate with real currency.
Lundy is privately owned, and in 1925 was bought by Martin Coles Harman, who styled himself the King of Lundy. In 1929 he issued coins equivalent in value to a penny and a ha’penny. The full penny was a puffin (in the summer the birds are prolific on the island; islanders used to trade puffins for food and other goods) and the reverse of the coin shows a puffin, with Harman on the obverse. The ha’penny equivalent was a half-puffin. Quite appropriately, the reverse showed just the head of the bird!
About 100,000 of the coins were minted in Birmingham. Harman came to an agreement with the banks in Bideford, on the mainland, to exchange them for legal tender and they were used locally with some success as well as on Lundy. The exercise got Harman into trouble with the law and he eventually lost his claim that Lundy was outside England, which, he argued, would have entitled him to issue his own coins. Eventually the tokens had to be withdrawn from circulation.
In later years – 1965, 1977 and 2011 – there have been new editions of the Lundy Puffin coins, but these have been sold only as collectors items and for tourists. These latter ‘coins’ don’t have the same value as the original 1929 tokens.
Lookout for specialist dealers, and you might also find interesting examples in antique shops or at antique markets. They are unlikely to be rare, but you could find something that others have overlooked. Be careful about what you pay for and do your best to satisfy yourself that the vendor is honest and reliable.
Above all, as you do your research and decide what to collect and buy, remember that you are balancing three elements: scarcity, the condition of the medal and its provenance.