George received a medal at the International Geographical Congress in Paris, 1875, for artificial mercury horizon and for his double box sextant. (Inv Nos. 1981-847 and 1876-988)
George received a medal at the International Geographical Congress in Paris, 1875, for artificial mercury horizon and for his double box sextant. (Inv Nos. 1981-847 and 1876-988)