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Trial frame for miniature telescopic units
TRIAL CASES, FRAMES AND REFRACTOR HEADS
low vision trial frame
1920s
metal; plastic
overall (case): 12 mm x 115 mm x 20 mm

Trial frame for clinical evaluation of miniature telescopic units. White metal frame comprising two small round rims, each separately adjustable for pupillary width from a central bridge bar with attached plastic pads. Rear-extending lugs leading to wire curl sides with plastic tubular covers on ends.


2013.617

The Norman Bier Collection, transfer from City University, 2013



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