I have for sale a vintage Kodak Pageant model AV-126-TR.  It's a vintage 16mm film projector probably from the 50s though I'm not exactly sure when these were manufactured.  It comes with built-in sound, by what of a 6 ohm speaker mounted in the front cover.

I've tested it as well as I can and it seems fully functional.  The motor works in both directions, both belts work correctly (though the fabric one should be replaced).  Lens seems undamaged, bulb is functional, and everything seems to spin in both forward and reverse mode.  Speaker crackles when plugged in which means it should be in working shape.  Cord is in great shape  I don't have a movie with which I could test it but everything I can test without a film seems fully functional.

Shipping is included in the purchase price in the US, eBay international for everyone else.