13 photos et images de Lawson�S Bicyclette - Getty Images
1879 : la bicyclette de Lawson - Photos Futura
Fichier:Lawson Safety bicycle.jpg — Wikipédia
L'évolution de la bicyclette - Playhooky
Bicyclette [by Englishman Henry Lawson the first back wheel chain drive bicycle ] 1880 From Wheels and Wheeling; An indispensable handbook for cyclists, with over two hundred illustrations by Porter, Luther Henry.
1879 : la bicyclette de Lawson - Photos Futura
L'évolution de la bicyclette - Playhooky
Lawson 'Bicyclette', 1879 | Science Museum Group Collection