Singer's special safety bicycle, c1886 (1890). This chain-driven machine introduced the diamond frame which gave greater rigidity in spite of its lightness. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 4133 px × 2537 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |