Nörremberg-type polariscope

unsigned
Polariscope (lacquered brass, nickel plated brass, oxidized brass) with maple case also used as base (30.8 x 13 x 9.7 cm; total height 35.8 cm). Reflecting mirror, pile-of-plates polarizer, condenser, round stage, objective, focusing optics and Nicol prism analyzer.
Unsigned, first half 20th century.

private collection