This is a cool lens off of a compact 35mm camera made by Minox. It has been modified to have a Leica L39 screw mount. It will not communicate with your Leica rangefinder however, it would probably be best adapted to mirrorless.
It is in good condition with light cosmetic wear and works perfectly. There are a couple of tiny marks on the front element, but I can only see them with a bright flashlight, they do not impact image quality. Otherwise the glass is clean with no haze, fungus, or other issues. The focus and aperture are smooth.
Lens caps are included along with a soft case.