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'Rotoid' bifocal lenticular lens
OPHTHALMIC LENSES
lenticular lens
20th c.
glass
diameter: 44 mm; round segment diameter: 28 mm
1999.5626
OPHTHALMIC LENSES
lenticular lens
20th c.
glass
diameter: 44 mm; round segment diameter: 28 mm
'Rotoid' bifocal lenticular lens. Glass. Round. Round optical segment.
1999.5626