Dunhill, two tone gold hexagonal petrol lighter, London, c. 1928, 9ct yellow and white gold, B size, white gold body with yellow gold top, lift arm, and base, hallmarked and signed, flint holder present, height 5.3 cm width 4.2 cm approx. Weight 53.2 grams, the production model was released in 1929 but this hand-made factory prototype lighter was made in London in 1928