Here's one of those 1970s items that was advertised in both DC and Marvel books, amazingly enough!
I'd alluded to the Kenner Easy-Show Projector a number of days ago... here's the model that featured a Superman cartridge! The cartridges (if I understand them correctly) were kind of a film loop (much like the other movie viewer items I've shown here), but none of them (so far as I know) had sound! Heck, this one required you to crank it by hand -- later versions were motorized.
I have been a Navy journalist, word processor, graphic designer, medical assisting student, cook, and truck driver, and am currently an eBay seller as well as an employee at a big retail store. I have been and always will be into comics, sf, tv, cartoons, monsters, oldies rock, and lots of other stuff.
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Please join me every day at the Fortress of Solitude Trophy room as I present photos of all sorts of Superman collectibles, from toys to games to puzzles to original comic book art and more! I am not offering any of these items for sale - all photos have come from eBay auctions of the past.