Debenham Sisters
Betty and Nancy Debenham, with their dog, Poncho, were keen motorcyclists. Nancy won a Gold Medal at Brooklands in 1926.
The Debenham Sisters
Gyroscopic was a 'one-off' motorcycle produced in 1912.
This machine had a rotary engine, a form commonly used in aviation, and shaft drive. A heavy-duty bicycle frame with simple forks was adapted to carry the mechanics.
Source: Graces Guide
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