Strange Projection TV

[hposter]

Took a look at this tall white plastic projection set in Northern NJ today.

It stands about 6 feet high, with a molded white plastic swept-style base, and the weirdest screen, resembling a flattened balloon! I'd guess 70s or 80s. It has a lens assembly inside, which is made similar to an overhead projector, and there is a portable TV (I was told), in the attic which slides into the unit. The TV is mirror-image to compensate for the projection assembly.

Has anyone seen this set before, or even an ad? I've seen a skillion sets, but nothing remotely like this one. It might be a school type set, or something originally used in a lecture environment.

Had just picked up a TRK-120, so I didn't have room in the van, even if I decided to get it! Thanks -- Harry