Boxed Gold and Silver Coins Issued to commemorate the silver wedding anniversary of Queen Elizabeth II and the Duke of Edinburgh in 1972.Consisting of. 50.00 pound coin. 22ct. Weight: 22.63 grams 25.00 pound coin. 22ct. Weight: 11.90 grams 20.00 pound coin. 22ct Weight: 9.26 grams 10.00 pound coin. 22ct Weight: 4.64 grams 5.00 pound coin. 22ct Weight: 2.26 grams 2.50 pound coin. Sterling silver Weight: 27.10 grams 2.00 pound coin. Sterling silver Weight: 21.64 grams 1.00 pound coin. Sterling silver Weight: 10.84 grams 0.50 pence coin. Sterling silver Weight: 5.42 grams