An optical device by Runge & Kaulfuss Rathenow,... Lot 10370
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An optical device by Runge & Kaulfuss Rathenow, 1st half of the 20th century.
Cast iron base with swivel and lockable suspension. Movable mirror and lens system, one tube marked "RUKA Runge & Kaulfuss Rathenow 3833". Not checked for completeness and function. Damaged, signs of age. Length 53 cm.
The vertex refraction meter (lensmeter) is used in ophthalmic optics to determine the vertex refraction value for optical vision aids.
Condition: III
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