DDR SECRET SERVICE STASI RARE SPY LENS 25MM SCREW THREAD HAS CINE APERTURE

VERY RARE STASI, EAST GERMANY SECRET SERVICE LENS.

I found this lens (and small button?) along with many other DDR secret service 14 SR-899 Zeiss lenses and accessories.

Lens comes into focus at about 17mm(distance between rear element and film plane), has a image circle that covers about 24x24mm, aperture is triangular shaped and can be closed completely(like cine lenses can).

The screw thread is 25mm.

Lens shows some signs of prior use and is overall in very good condition. Shows some scuffing, minor scratches, no dings, no indentations, no rub off. The elements are in very good condition. No cleaning marks, no scuffs, no scratches, very slight haze, no fungus, no separation. Shows no dust particles inside. Has no focus mount. Lens comes without caps.