Bonhams' $2 Million Motorcycle Auction

On Monday, Bonhams will auction off an astounding collection of vintage motorcycles worth $2 million at the Royal Air Force Museum in London. The sale represents the largest single-owner collection of motorbikes ever to come to auction; all 300 machines are from the Professor Fritz Ehn Motorcycle Museum in Austria. Our favorite lots are two wicked - and wickedly fast - British-made Vincents: the 1955 998cc Black Prince, pictured here, est. $56,000 - $64,000; and a 1952 998cc Black Shadow, the fastest road-going vehicle of its time, est. $44,000 - $56,000.

Also included in the historic sale: a 1935 Brough Superior 1,096cc 11-50hp, ak.a. the "Rolls-Royce of Motorcycles" as driven by T. E. Lawrence (the famous Lawrence of Arabia), est. $50,000 - $60,000; a 1927 BMW 500cc R47, est. $36,000 - $44,000; a 1937 Ariel 995cc Square Four Model 4G, est. $20,000 - $24,000; as well as many other examples by Harley Davidson, Ducati, Triumph and more.