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'Tri-Vue, D on D' fused trifocal lens
OPHTHALMIC LENSES
trifocal lens
20th c.
plastic
1999.5583
OPHTHALMIC LENSES
trifocal lens
20th c.
plastic
'Tri-Vue' trifocal lens. Round. Plastic. Fused 'D on D' segments. Drilled hole at edge for frame attachment.
1999.5583