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fused bifocal lens
OPHTHALMIC LENSES
bifocal lens
Europe: United Kingdom, England
1950s?
glass
overall: 54 mm x 53 mm

Fused bifocal lens at a medium stage of manufacture with fused distance and near portions, as yet unground.


2014.582

Gift of Mrs Susan Elston in memory of Mr George Warren, 2014



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