Good Sam RV Club Member
It's gonna be tough to figure out the make & model, because so many of the companies are no longer in business, and unless there is something really unique in the design, many of these tin-side units look pretty similar.
If you open an account with Photobucket or one of those on-line accounts, you can the post pictures from there. The more pictures you post of the TT (from different angles and inside) the better your chances of someone recognizing it.....within reason
I assume that you dug around in the drawers, cabinets and any other places that some paperwork might be hidden?
Honestly, I don't know if it really matters anyway? You said you didn't need it for registration purposes....though maybe for Insurance?
The appliances and such will probably be common to most other TTs out there, so you may be able to find a S/N on the fridge or something, to backtrack through those companies to figure on a year (though that would only be the year the fridge was made, not when it went into the TT)....but it may help!
Bill & Claudia / DD Jenn / DS Chris / GS MJ
Dogs: Sophie, Abby, Brandy, Kahlie, Annie, Maggie, Tugger & Beau ">
RIP: Cookie, Foxy & Gidget @ Rainbow Bridge.">
2000 Winnebago "Minnie" 31C, Ford V-10
Purchased April 2008"> FMCA# F407293