Guyana 1966 $100 Gold Proof, Weight 5.74 g, purity 50% https://en.numista.com/catalogue/pieces44485.html Bahamas 1973 $50 Gold Coin Proof Weight: 15.64 g, purity 50% https://en.numista.com/catalogue/pieces60688.html Postage at buyer's cost, take both and I will cover the shipping.