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Bruce Refracting Unit
TRIAL CASES, FRAMES AND REFRACTOR HEADS
refracting unit
Automatic Sight Testing Co Ltd
Europe: United Kingdom
c.1889
wood; glass; metal
overall: 290 x 505 x 235 mm

Wooden cased conveyor belt of spectacle fronts with plus and minus (and tinted) lenses, revolving on two brass chains turned by a milled handle. Glazed top and side doors.


2003.328

Ex Hugh Orr Collection (gift of Miss Kusoom Vadgama FCOptom, 2003)



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