Catalogue of African, Oceanic, Pacific North-West Coast, American Indian, and pre-Columbian art, Tibetan and Nepalese tankas, Nepalese, Tibetan and Indian art, including a highly important Rarotonga wood figure of a god, a fine Benin bronze female head and an important fifteenth century Nepalese Pata : auction, London, Royal Watercolour Society Galleries, Tuesday 5th December 1972. Sotheby & Co., auctioneer