CARL ZEISS JENA R24cm PROTARLINSE VII LENS in a COMPOUND SHUTTER. The front and rear sections of the lens have sequential serial numbers. Both optical sections are really clean for such a vintage lens, not perfect, just the odd small specks and marks ..... but no haze, fungus or scratches and usable straight out of my box in my opinion which is nice for a lens over a century old. The shutter times well even at the slow speeds. The iris works. Clear normal signs of age and use to the lens`s exterior. Free UK P&P. gncab