Coronis was built in 1935 by Harland and Wolff at Woolwich, London, for the Grand Union Canal Carrying Company
It is a butty, which means an unpowered trailer boat intended to be towed by an engine-powered motor boat. Boats worked in pairs. Experiments using wide-beamed boats had not been a great success in the early 1930s. Coronis is incomplete, in fact it is only half a boat, the stern half. The front half is afloat in private ownership. The hull is original but the superstructure is a reconstruction, authentic in almost all respects but the cabin roof is a little higher that the original to facilitate visitor access.
