A close friend has a Minolta Rokkor-X MC 400mm APO fluorite lens he's looking to sell. He has other equipment for sale, but the APO is the gem of his collection. He has the matching 2X teleconverter with it.
It is in almost pristine condition. He rarely used the lens. I have photos for anyone interested in making an offer.
From my own collection I am selling the last remaining focusing screen from my XK Motor. It's a G screen in the plastic case.
I can be reached at email@example.com.