Australian 1966 Round 50 Cent 80% Silver Buyback Secondary Market

1966 Round 50 Cent Each coin has the following specifications: Obverse: Elizabeth II to right, legend around Reverse: National coat of arms, denomination below Diameter: 31.50mm | Weight: 13.28g | Purity: 80.00% | ASW: 0.3415 ozt Mintage: 36,500,000