Physical description
Postcard: black and white card. Biplane, flying over airfield. On bottom 'Sopwith 80 hp speed scout biplane, 1913. War office tests: slow speed 36.9 mph, fast speed 92 mph, climb 1050 ft. per minute.
Postcard: black and white card. Biplane, flying over airfield. On bottom 'Sopwith 80 hp speed scout biplane, 1913. War office tests: slow speed 36.9 mph, fast speed 92 mph, climb 1050 ft. per minute.