Its hard to say if it is a VT that is missing the trigger on the bottom or a VL without the correct winder. It is really easy to take off the bottom plate, it is just two screws on the sides, and using a spanner you remove the retaining ring that is around the tripod socket. From there you should be able to make out if it supports the trigger winder or not. These are nice cameras and really solid, but using that type of winder is will make it difficult to use this quickly. I have the VT and the VIT cameras.
Unless Canon built VL cameras with a place on the top plate casting for the release button that would permit a replacement knob (in lieu of the film wind lever) to pop up, this can't be a VL with a retrofit knob. Well, if I decide to buy it -- and I'm having a hard time convincing myself I need another Canon RF body, as I just came across an interesting Noct-Nikkor -- I'll be able to pull the bottom plate to see if it's a revised VT. And frankly, if I wanted a knob wind Canon, I'd be more tempted to try a IVSB or similar. I've used the knob wind on my Canon VT and it's less easy to use than the knob on my Leica III.
It's a VL lower with a VT Deluxe top... Can this camera wind film? I mean, do you see a winder anywhere?
Canon VT Deluxe Here: http://www.canon.com/camera-museum/c...page=1956-1965
I would be skeptical that this wasn't some sort of hack job- making something that looks like a working camera out of parts; really, without seeing the insides it is pretty suspicious. Either that or it's super-rare one-of-a-kind etc. etc.