This is a Topcon (Tokyo Kogaku) Topcor 5cm F3.5 old lens for L39 mount. ☆ I have confirmed all basic operations, including collapsing the lens. ◎ Regarding the exterior, there are minor scratches from storage and use, but the lens barrel retains its luster, and I believe it is in beautiful condition considering its age. ◎ Regarding the optics, as this is an old lens, it may have some slight haze or minor scratches, but there is no noticeable mold, and the light transmission is good considering its manufacturing date. ☆ Although I have confirmed all basic operations, this is an old lens, so I am selling it as junk.