Tiny Cine lens by Eumig in Wein, unknown threaded mount with a 2-hole flange, dia. approx. 12mm.  12.5mm focal length, aperture is f2.8.  There is a diaphragm that is clean and turns smoothly, but there is no scale.  I assume the scale and ring to turn this is part of the camera it's from.  Glass is reasonably clean as far as I can see, just some dust.  Appears to come off a Eumig Electric cine camera with an outer shell for the lens that has the aperture, please see last photo (not mine) for reference.  No camera is included in this sale, this is just for the lens.

Sold as-is, as a collectible only, no returns please.