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Fused Bifocal Selection Chart
ARCHIVAL ITEMS
selection chart
British Ophthalmic Lens Manufacturers' Association
Europe: United Kingdom, England, London
20th c.
card
overall: 195 x 233 mm
2002.285
ARCHIVAL ITEMS
selection chart
British Ophthalmic Lens Manufacturers' Association
Europe: United Kingdom, England, London
20th c.
card
overall: 195 x 233 mm
Cardboard chart mounted on royal blue backing with suspension loops and blue hanging cord. Printed with stock range chart plotting reading additions (dioptres) against moulded or ground segment side curves.
2002.285
Paul Fairbanks Archive