An 18ct yellow gold curb-link fob chain with parrot clasps, with whites tone inset watch key and a 22ct gold half-guinea coin with the British coat of arms on one side, and the head of George III on the other. English 19. An 18ct yellow gold curb-link fob chain with parrot clasps, with whites tone inset watch key and a 22ct gold half-guinea coin with the British coat of arms on one side. and the head of George III on the other. English 19th/18th century. Dimensions: Length 34.5 cm. Weight. 43.7 grams