Help me identify this 1975 toy slide projector

• Help me identify this truly awesome toy I had as a child, a kind of transparency projector with groovy slides. Round about Christmas 1975, my uncle gave me my favourite toy ever. It was a red plastic projector that came with numerous circular slides about three inches in diameter that could be combined in interesting ways. For example, one slide was about 1/8" thick and contained blue liquid with bubbles that made a kind of psychedelic light show on the wall. Another slide was two colour wheels joined together in the middle. You could rotate the wheels independently to get different colours. There was room in the projector for more than one slide, so you could (for instance) combine the colour wheel with the blue bubbles to make bubbles of constantly changing hue. I also had some Shrinky Dink material and cut out circles of just the right size, then drew comic strips on them with magic marker so that I could project those on the wall too. (I think the projector may have come with a blank slide that gave me this idea.) Overall, given the versatility of this toy and the scope it offered my imagination, it's hands down the best toy anyone ever gave me as a kid. Identifying data: I was well-versed in the major toy manufacturers of my childhood, such as Mattel, Wham-O, Kenner, etc. and I think I remembered noticing that the projector was made by a "no-name" manufacturer, which seemed odd to me. For what it's worth, my uncle lived in New Jersey, and he probably bought the projector at Toys'R'Us. Identifying this toy has become, well, not quite an obsession for me. My sister and I sometimes talk about it, but we've never seen one since. Not only would I like to pick one up on eBay if it's not too expensive, but I'm also turning my articles on http://www.thegamesjournal.com/articles/GameSystems1.shtml for the dear defunct Games Journal into a book, and it strikes me that my good ol' projector was a striking example of what you might call a toy system. In sum, anyone ever have one of these?

• Answer:

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