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Wollaston type goniometer with mirror attachment



Secretan, Paris
Wollaston type goniometer (brass and blackened brass) with mirror attachment, engraved silvered scale and vernier read-out with twin adjusting wheels and fine adjustment. Lead filled brass base with 3 screw leveling feet. Diameter circle 12 cm, height: 20 cm.
Signed on the mirror attachment "SECRETAN | PARIS", and on a trade label to the lid of the case. Ca. 1880.

Collection: private collection
Photographs courtesy of Fleaglass.com


Wollaston type goniometer, Secretan, Paris


Wollaston type goniometer, Secretan, Paris


Wollaston type goniometer, Secretan, Paris


Wollaston type goniometer, Secretan, Paris


Wollaston type goniometer, Secretan, Paris


Wollaston type goniometer, Secretan, Paris


Wollaston type goniometer, Secretan, Paris