This is a listing for an Industar-50-2, known as a pancake lens. It's a Tessar-type lens with an M42 mount. This lens is also popular as an entry-level lens for those new to old lenses. The body has some scratches, but it's in good condition for an old Russian lens. The lens has been disassembled and cleaned. It has also been greased, and the focus ring and aperture ring move smoothly. There is no mold or haze inside the lens. It maintains a clear condition. Due to the lens's construction, it's easy for tiny dust particles to get inside. We've removed them as much as possible, but some minor particles may still be present. There may be some light cleaning marks typical of Industar lenses, but they are minor and won't affect the image quality. Both the aperture ring and the focus ring move correctly. I believe this lens is in overall good condition. If you win multiple lenses, we will combine shipping whenever possible. As an aside, if you don't have an adapter, we recommend purchasing an adapter made by K&F Concept. Inexpensive adapters that can be purchased for under 1000 yen may lack precision, so it's safer to buy a reliable one. If you have any questions, please ask. I will answer them as best I can. We are also listing other rare old Soviet lenses, and we plan to increase the number of listings, so please take a look. Industar 50-2