The ancestor of all bicycle.

'The Hobby-Horse 1819' published July 16, 1894 by the Leadenhall Press Ltd., 50 Leadenhall Street, London EC.
‘The Hobby-Horse 1819’ published July 16, 1894 by the Leadenhall Press Ltd., 50 Leadenhall Street, London EC.
Mass bike-sharing in Shenzhen, China.