Re: Snow Trac add found.
The Snow Master version had a wider set of tracks and from what I can tell it was available with a 2 person cab or a 7 person cab. I have a file photo of a Snow Master that shows a fastback style sloped rear behind a 2 person cab.
The Snow Trac version typically had a 7 person cab like mine, I have never seen a Snow Trac with a 2 person cab. I know of some of the open top versions being used in the southern US, specifically in the Texas oil fields as work vehicles to transport workers and equipment across the shifting sands of the desert. I have collected some photos of Snow Tracs that seem to have home-made cabs or modified cabs. And some that have different window configurations and slightly taller cabins. Honestly I have no idea how many variants were available.
The advertisement looks like it has the front part of the aluminum cabin with a tent like structure over the entire passenger area. 'schmidt' from Mountain Home Lodge told me that his Snow Trac had a fabric top and he replaced it with a removable wood top, but his fabric was only over the rear passenger area.