The lens was designed to work with AP cinema projector for 35 mm film, which was manufactured in the '50s by Łódzkie Zakłady Kinotechniczne. As far as I know from Uncle Google, it's a common Petzval lens. Nevertheless, the focal length and maximum aperture are truly interesting. You have to admit that!
So first of all, it's a really huge lens. Here you can see it compared to a 4/3 Olympus Zuiko Digital 12-60 mm 1:2.8-4.0.
Ł.Z.K. Polkinar 120/1.8 compared to Olympus ZD 12-60/2.8-4.0
