My latest is a Hasselblad 500CM, factory marked as a 500C body that I picked up on fleabay for 35 clams. The upper back door didn't go all the way up. Easy remedy. I added an old back, lens, and folding finder from my junk box, and now I have a gorgeous 500CM for 35 bucks. Works perfect. Pretty neat, huh? BTW--A CM marked C is from 1971