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trial case (bifocal segments)
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial case
American Optical Company
North America: USA, Massachusetts, Southbridge
Post 1910
leatherette; metal; glass
case: 52 x 122 x 100 mm

Small leather-covered wooden trial case. Hinged lid. Sliding catch. Purple silk and velvet lining. Manufacturer's plate inside lid. Contains 12 pairs of bifocal segment lenses within full-size round trial lens frames of white metal with handles.


2004.524

Gift of Mr J. Hamilton Scott, FCOptom



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thumbnail trial case (bifocal segments)
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