The offwheel-horſe a grey, namedSingle Peeper, ſold for 50 [guineas][…] The nearwheel-horſe cheſnut, namedChance.
1869, Velox[pseudonym], “The Velocipede of the Past;and The Art of Velocipede Management”, inVelocipedes, Bicycles, and Tricycles: How to Make and How to Use Them. With a Sketch of their History, Invention, and Progress, London:George Routledge and Sons,The Broadway,Ludgate; New York, 416,Broome Street,→OCLC,pages39–40:
In 1830 a bold and vigorous attempt was made to utilize thewheel-horse. A French post-office official, M. Dreuze by name, brought forward an improvement on the old two-wheel velocipede, which bid fair to be successful.[…] A number of the country letter-carriers were mounted on thewheel-horse, and whilst the roads continued dry and hard M. Dreuze could congratulate himself on the success of his invention; but with wet weather came bad roads, and to the wet succeeded frost and snow. A little extra labour was all that was required to overcome the extra friction of the bad roads, but the wheels refused to progress on the slippy frozen surface.