Very interesting. It may be as Fixcinater said, somebody removed the trigger from an Vt and substituted a baseplate from an L1. Or maybe somebody had an VL2 and removed the film advance lever and substituted a knob wind.

You should post this over at RFF. Many Canon rangefinder aficionados over there, including Peter Kitchingman, Stephen Gandy as well as Peter Dechert. Maybe they can offer something.

Jim B.