I vaguely remember something like this being used in my times at school projecting FiLm Negatives onto a white board. This apparatus has been in my late father’s storage for years unknowingly whether he ever stretched its use cause there’s no discolouring from the bulb on the cover. I choose to list it as not working for obvious reasons being the bulb having no filament, therefore needs replacing. For performing experiments and exemplifying the old camera technologies the lenses seem all present and intact.
eBay