Guinea(redirected from Guineo)
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A gold coin issued in the United Kingdom between 1663 and 1816. From 1717 on, its value was fixed by law at 21 shillings, or just over one British pound. After it was withdrawn from circulation, "guinea" remained a slang term for 21 shillings. After decimalization, the term was still used in horse racing and the sale of rams to mean 1.05 pounds.
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