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Hyperaspheric bifocal lens
OPHTHALMIC LENSES
bifocal lens
Late 1970s/early 1980s
glass
1999.5310
OPHTHALMIC LENSES
bifocal lens
Late 1970s/early 1980s
glass
Hyperaspheric bifocal lens. Flat-top segment. PRO-shape. Black ink markings around segment.
1999.5310