Zeiss Vario Sonnar 10-100mm T2 F2.8 Vario Sonnar ARRI B Mount.
Glass is a little banged up (micro scratches, cleaning marks, dust, micro-dents around rear element) but can still be used to shoot in most situations.
Reflected light, and filming at/into direct light will cause issues/scattering. See stills from footage taken at sunset (iffy) and from footage taken in even, indirect light (good).
Sold as-is, no returns.