Proof Quality 99.9% Pure Silver The coin is struck by The Perth Mint from 1oz of 99.9% pure silver in proof quality. Tobruk Reverse Design The coin’s reverse depicts an Australian soldier, or ‘Rat of Tobruk’, wearing Second World War Western Desert Campaign military issue. The background incorporates a printed historical image of soldiers at Tobruk, and the inscription TOBRUK 1941. The Perth Mint’s ‘P’ mintmark is also included into the design. Australian Legal Tender Issued as legal tender under the Australian Currency Act 1965, the coin’s obverse depicts the Ian Rank-Broadley effigy of Her Majesty Queen Elizabeth II and the monetary denomination. Limited Mintage No more than 5,000 of these coins will be issued by The Perth Mint. Silver Content (Troy oz) 1 Monetary Denomination (AUD) 1 Fineness (% purity) 99.9 Minimum Gross Weight (g) 31.135 Maximum Diameter (mm) 40.60 Maximum Thickness (mm) 4.00 Box: Yes, with a little damage