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'Quintex' fused concentric downcurve trifocal lens & envelope
OPHTHALMIC LENSES
trifocal lens
Haussmann
North America: USA, Pennsylvania, Philadelphia
20th c.
glass
1999.5579
OPHTHALMIC LENSES
trifocal lens
Haussmann
North America: USA, Pennsylvania, Philadelphia
20th c.
glass
Trifocal lens. Round. Glass. Fused concentric downcurve segments. Contained in square, pink paper envelope.
1999.5579