![China: A jiao or Chinese sedan chair carried by five porters, Beijing, c. 1885. The litter is a class of wheelless vehicles, a type of human-powered transport, for the transport of persons. China: A jiao or Chinese sedan chair carried by five porters, Beijing, c. 1885. The litter is a class of wheelless vehicles, a type of human-powered transport, for the transport of persons.](https://c8.alamy.com/zooms/6/211afa9a4fc54380bd9f68bbaf5e3257/2b01ak2.jpg)
China: A jiao or Chinese sedan chair carried by five porters, Beijing, c. 1885. The litter is a class of wheelless vehicles, a type of human-powered transport, for the transport of persons.
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![Merlin's 'invalid or gouty chair' and the origin of the self-propelled wheelchair - Marie-France Weiner, John R Silver, 2016 Merlin's 'invalid or gouty chair' and the origin of the self-propelled wheelchair - Marie-France Weiner, John R Silver, 2016](https://journals.sagepub.com/cms/10.1177/0967772015584738/asset/images/large/10.1177_0967772015584738-fig4.jpeg)