LONDON.- International fine art auction house Bonhams completed the sale of the Owston Collection (June 25 & 26) in Sydney, Australia, with a total of AUS$13.1 million. The two-day sale held in Sydneys Overseas Passenger Terminal attracted 1,400 people registered to bid. Australian bidders purchased over 80% of the collection, with overseas bidders buying the rest. Highlights of the sale included: A rare set of twelve George III collector’s cabinets in which the great British naturalist Sir Joseph Banks stored his Australian geological specimens ($300,000) Philip Reinagle and Sawrey Gilpin (British 17491833), Portrait of Colonel Thornton ($348,000) Norman Alfred Williams Lindsay (Australian 1879-1969), The Sisters ($288,000) A fine Irish Regency mahogany dining table ($288,000) An impressive Victorian silver Equestrian group of an Indian spearing a buffalo by Charles Fr