Thank you for viewing. This is a listing for a rare RICOH RIKENON 50mm P F2 manual lens, made by Tomioka Optical, with a seal, often referred to as a "Japanese Summicron," for K mount. I purchased this about 10 years ago during a period when I was passionate about searching for old lenses. It was found in my parents' dehumidified storage, so I am listing it as part of a decluttering effort. There is some slight dirt on the lens and fine dust particles inside, but no mold or fogging appears to be present. The photos taken with it do not seem to have any issues. Basic operation is also without problems. There are minor scratches on the exterior due to normal use. As this is a used item, please refrain from purchasing if you are concerned about any of the above points. Excessive price reduction requests or ghosting in comments are unpleasant, and may result in being blocked. Thank you for your consideration. RICOH RIKENON 50mm F2 P Brand: Ricoh