Three Douglas World Cruiser planes, taking part in the first flight around the world, on the Huangpu, Shanghai, June 1924

Three Douglas World Cruiser planes, taking part in the first flight around the world, on the Huangpu, Shanghai, June 1924

Douglas World Cruiser plane, taking part in the first flight around the world, on the Huangpu, Shanghai, June 1924

The 'Boston' Douglas World Cruiser plane, taking part in the first flight around the world, on the Huangpu, Shanghai, June 1924

Douglas World Cruiser plane, taking part in the first flight around the world, on the Huangpu, Shanghai, June 1924

Three Douglas World Cruiser planes, taking part in the first flight around the world, on the Huangpu, Shanghai, June 1924