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'Atoz' prism-controlled solid bifocal lens
OPHTHALMIC LENSES
bifocal lens
Stigmat Ltd
Europe: United Kingdom
1950s?
glass
1999.5529
OPHTHALMIC LENSES
bifocal lens
Stigmat Ltd
Europe: United Kingdom
1950s?
glass
'Atoz' prism-controlled solid bifocal lens. Base-down prism segment.
1999.5529