Great Britain. 500 Pounds, 2012. S.4920; KM-1235. Silver weight 32.117 ounces (Kilo). Mintage 2,012. 100 mm. Struck by the Royal Mint. For the London 2012 Olympics. In presentation case. NGC graded In jumbo holder. Proof 70 Ultra Cameo. Estimate Value $800 - 1,000