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Univis B bifocal blanks
OPHTHALMIC LENSES
lens
20th c.
glass; cardboard

White cardboard box containing set of 10 blank lenses showing stages in the manufacture of Univis B bi-focals. Each round lens contained within its own cardboard packet. (One lens is in a coloured Bausch & Lomb packet).


1999.3087

Gift of C. E. Bloodworth, 1978



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