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Patent lens thickness gauge
MANUFACTURING AND DISPENSING EQUIPMENT
lens thickness gauge
Bausch & Lomb Optical Co
Europe: United Kingdom
20th c.
metal
overall: 77 x 180 mm

White metal pincer-type thickness gauge for measuring lenses. (Slightly rusted). Spring lever mechanism with adjustment screw. Curved, engraved scale in millimetres.


2003.243

Gift of Mr Tony Stevens, 2003



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