13 photos et images de Lawson�S Bicyclette - Getty Images
1879 : la bicyclette de Lawson - Photos Futura
1860-1880 - exposition virtuelle
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.