[Drawing] Tricycle / William Howe. 1869 Apr 20. [Line drawing with wash, scale 3" : 1'. Bears note on verso 'Tricycle designed & made by Grandfather Howe & used by him'. William Howe took out a patent, 725 of 1864, for motive power engines. He was the originator of the 'Stephenson' link motion, and engineer to the Clay Cross Colliery Company]