I got this one as a freebie from a throwaway box. It's a Mamiya/Sekor 1000 TL. It's most certainly dead as a doornail, and I'm going to throw it away if no one is interested.
If you've ever wanted to dissect a camera, this is your opportunity. No guilt, because it is already destined for the trash heap. Perhaps, if many people are interested, we can even have a dissection party!
I'll hang on to it for a day or two and then chuck the cadaver if nobody's interested.
Sorry, I'm keeping the f/1.8 55mm Mamiya/Sekor lens.