Two circle contact goniometer

Stoe & Cie, Fritz Rheinheimer, Heidelberg
Stoe two circle contact goniometer (nickel plated brass and blackened brass base) with graduated circles and vernier read-out, a steel rod with contact plane and specimen holder on a ball and socket joint. Height 19.5 cm.
Signed on the vertical circle "Stoe & Cie | Fritz Rheinheimer | Heidelberg" and "Made | in | Germany", first half 20th century.

private collection



Similar instruments exist with a slightly different signature on the vertical circle "Stoe & Cie | F. Rheinheimer | Heidelberg" and "Made in | Germany", (see image below)