Does anyone know a model number of a projector that would be able to project the old aluminum frame glass 35mm slides? The frame is quite thick and will not work in my slide projector. The slides will descend but are heavy enough to stay in the slide "hole" and not come up by the spring mechanism, and I don't want to tax the spring mechanism of my slide projector. I figure if I could google a model number I might have better luck finding some such thing on ebay.
Slides are from 40's-50's, maybe earlier. There are two types of aluminum frames; the later ones have plastic "loc" backs, the older ones have sort of an empty back.