Hi All
I have seen somewhere a 35mm slide projector that had this fold up screen that was as wide as the projector
not like the small side one on Kodak, but I can't remember what make or model ? think it was euro.
A second question is do Rollie carousel projectors use the ubiquitous Kodak trays ?
You might be able to find a Kodak Ektagraphic 260AF or Telex Caramate 4000 (identical) av viewer/ projector. Both take Kodak circular trays, have 9nx9in built-in screens and can also project by opening a sliding door. I doubt they are still made but you might find one in good condition. I have mine for very many years and they still work.
The Kodak Ektagraphic 260AF or Telex Caramate 4000 (identical) av viewer/ projectors were used a lot in school (grade and HS) av departments for instruction with slides. They were also used quite a lot for sales presentations at trade shows in the 70's-80's. You can still find them at used office equipment stores. I have seen them at surplus school equipment auction sales. Not long ago I saw a whole crate of them sell for $50.