Hi Ron, I am pleased that the information I posted was useful and helped you out. Maxwell (Jonh) Hemmens is and was an incredible engineer, who manufactured a very wide range of steam-powered machines, from traction engines to trains, mill and beam engines, and of course marine engines, he made two V fours the Caton, and the Max4, now both of these are worth a king's ransome, mind they were never cheap in the first place but they are definitely made to last. Regards, Gary. (My Avatar) the open Launch is a Caton engine and a 4 x4 Boiler care of the man himself. The guy holding the Lady Jane is Jonh Hemmens.