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adjustable trial frame
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial frame
Late 19th / Early 20th c.
metal; bakelite
overall: 130 mm
2011.17
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial frame
Late 19th / Early 20th c.
metal; bakelite
overall: 130 mm
Medical trial frame. White metal frame. Adjustable for bridge height and P.D. Adjusting wheels with milled edges. Metal nose pad broken. Capacity six trial lenses. Two lens clips in front of eyes and one behind. Front clips revolve. Semi-circular white bakelite scales marked 60-180-45 and 135-180-120. Bridge bar with sliding nose rest and inlaid PUPIL and TEMPLE bakelite scale. Sliding sides with cable curl terminals.
2011.17
Gift of Mr Geoffrey Kime, 2010