Here's the deal...I've been doing my spring cleaning a little early this year. I have several camera adapters for sale. I don't know much about this stuff because I don't own a film camera (I use a modified webcam with my telescopes).
Anyhow, here's what I can tell you about this stuff...one is a Meade Variablr-Projection tele-extender (Japan), one item has Parks - Japan labelled on it. There's a mounting ring with Canon - Japan labelled on it (I believe this is for a 35mm camera body). Several of the rings and tube have Vixen markings & serial numbers on them (36.4 m/m T 70002, 70005, 70004, 70001, & 70001 again).
I've tried my best to describe this stuff. I've included a picture below. $30 shipped to anywhere in the USA. Paypal accepted.
Email me if interested.