Notable for its unusual 1.5 troy ounce weight and exceptionally high. 9999 fine silver purity. It was one of the first coins ever produced in this weight by the mint, making it stand out among standard 1 oz silver bullion coins. Metal Content: 1.5 troy oz silver. Weight: 46.65 grams. Features a right-facing portrait of. Designed by Susanna Blunt. Depicts a polar bear walking across Arctic ice. Designed by Germaine Arnaktauyok. FINE SILVER 1 1/2 OZ ARGENT PUR.