Rollei, Zeiss Prototype Projection Lenses (various)

lot of 17 prototype and test projection lenses, all from the Rollei company inventory, all in the same 74mm mount: (1-2) two Heidosmat 2.8/160mm lenses no.000009 and 000010, (3) Heidosmat 2.8/150mm, (4) Heidosmat 2.8/110mm no.70010, (5) Heidosmat 4/400mm no.378023, (6) Heidosmat 3/250mm no.90006, (7) Vario-Heidosmat 3.5/110-160mm no.9421882, (8) Vario-Heidosmat 3.5/110-160mm no.377690, (9) S-Heidosmat made by Isco 2.8/150mm, (10) Isco Cinelux-AV 6x6 4/250mm, (11) Isco Projar 4/400mm Rb 380 Nr.2, (12) Carl Zeiss Distagon 4/50mm no.4687856, (13) Carl Zeiss P-Planar 2.8/150mm no.108399V5/1, (14) Schneider Proclar 2.8/45mm no.7844839, (15-17) two unmarked lenses and one engraved 'Rechnung 3a/1', all in good to near mint condition, interesting collection of Rollei history