Two circle contact goniometer

Böhm & Wiedemann, München [replica]
Replica of a two circle contact goniometer (lacquered brass and blackened brass base) with graduated circles and vernier read-out, a rod with contact plane and specimen holder on a ball and socket joint. Vertical circle 15.5 cm.
Signed on the horizontal circle "Böhm & Wiedemann, München", ca. 1990.

collection Roger Warin