monkey, the factory plain side windows used a basic rubber channel available at any local auto glass shop that installs right on the metal edge similar to a rear window, and had no inside framing at all - that woodwork in yours was someones add-on, possibly a 3rd party or the user

I had a 57 that was originally ordered as an ambulance by a logging company that had [GM documented] factory side windows, nothing fancy

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics