I'm not sure what that is either, the window looks Kelvinator but the latch outside the door is different. I love how the seller puts "color is rust" lol.
I would bet on the brand being Suburban, Wedgewood-Rheem, Roper or one of the other, similarly styled and constructeed gas manufacturer brands sold in gas company showrooms.
Yeah, that anyone would think they could even dream of getting $100 for the rust bucket. I hope that they lost their seller's fee for entering that piece of crap in the auction, but maybe out there in AH acres there are no standards.