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Quarter-circle contact goniometer with fixed limbs



unsigned
Quarter-circle contact goniometer (nickel plated brass, steel limbs, length of the limbs 10 cm) in red plush-lined cloth covered case (13.4 x 9.4 x 2.4 cm).
Unsigned, but certainly R. Fuess, Berlin, end 19th century. This model was described by Th. Liebisch (Grundriss der Physikalischen Krystallographie, 1896)

Collection: private collection

Quarter-circle contact goniometer with fixed limbs


Quarter-circle contact goniometer with fixed limbs


Quarter-circle contact goniometer with fixed limbs


Quarter-circle contact goniometer with fixed limbs
Quarter-circle goniometer as depicted in P. Groth, "Physikalische Krystallographie" 4th ed., Leipzig, 1905. p. 632, fig. 664