The product is a 1983 First Round BU £1 coin in a data stamp envelope, along with a BU Last Round £1 coin. Both coins have a denomination of One Pound and are part of the British decimal coinage. The first round coin is from the early days of the currency reform, making it a collectible piece for numismatists interested in British coins. The inclusion of both the first and last round £1 coins adds value to the collection, showcasing the evolution of British currency over time.
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