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Collier's two-speed driving gear for cycles
Collier's patent two-speed driving gear for cycles.
- Object Number:
- 1899-67/1
- type:
- gear and bicycle component
- Image ©
- The Board of Trustees of the Science Museum
Collier's patent two-speed driving gear for cycles
Collier's patent two-speed driving gear for cycles.
Component from Collier's patent two-speed driving gear for cycles.