Two Circle Reflecting Goniometers

Two circle reflecting goniometer (brass) with graduated circles and vernier read-out, telescope, collimator and goniometer head. Height 30 cm. Horizontal circle diameter 14 cm.
Signed "P. BOËT | BRUXELLES". Ca. 1900

Two circle reflecting goniometer (lacquered brass, partly black lacquered and nickel plated) with graduated circles and vernier read-out, telescope and different collimator signals on a revolving disk, adjusting wheels, and goniometer head. Height 39 cm.
Signed "P. Stoe, Inh. Fritz Rheinheimer | Heidelberg", first half 20th century.

Two circle reflecting goniometer (lacquered and partly nickel plated brass) with graduated circles and vernier read-out, telescope and different collimator signals on a revolving disk, adjusting wheels and goniometer head. Height 41 cm and 51 cm wide at widest point and weighs 15.876 kg.
Signed "Stoe & Cie, Inh. Fritz Rheinheimer. | Heidelberg, Deutschland", first half 20th century.

Two circle reflecting goniometer (black lacquered and nickel plated brass) with graduated circles and vernier read-out, telescope and different collimator signals on a revolving disk, adjusting wheels, and goniometer head. Height 46 cm.
Signed "Stoe & Cie. | Fritz Rheinheimer | Heidelberg", first half 20th century.

Two circle reflecting goniometer (black lacquered and nickel plated brass) with graduated circles (diameter: 15 cm) and vernier read-out, telescope and different collimator signals on a revolving disk, adjusting wheels and goniometer head. Height 38 cm.
Signed "Stoe & Cie, Fritz Rheinheimer. | Heidelberg, Deutschland", first half 20th century.

Two circle reflecting goniometer (black lacquered and nickel plated brass) with graduated circles and vernier read-out, telescope, and goniometer head mounted on the horizontal axis of the vertical circle. The electrical illumination is missing on this instrument. Height 43 cm.
Signed "R. Fuess, Berlin - Steglitz", first half 20th century.

Two circle reflecting goniometer (lacquered and partly nickel plated brass) with graduated circles and vernier read-out, telescope and different collimator signals on a revolving disk, build in light source, adjusting wheels, and goniometer head. Colimator and telescope are in a plane perpendicular to the horizontal circle. Height 38 cm.
Unsigned, ca. 1960.
Goniometers of this type have been constructed by Fritz Rheinheimer (Stoe & Co.).

CM two circle reflecting goniometer (lacquered cast iron, chromium plated brass and plastic) with graduated circles (diameter: 15 cm) and vernier read-out, telescope, build in light source, adjusting wheels, and goniometer head. Collimator and telescope are in a plane perpendicular to the horizontal circle. Height 26 cm.
Marked "Tecam" on the base, ca. 1960.

Two circle reflecting goniometer. With a swinging arm incorporating a combined collimator-telescope system. Fine adjustment wheels for both axes and goniometer head. Height 36 cm.
Signed "NEDINSCO | VENLO | 1055 | Patent a.f.", and numbered 179495, ca. 1960.