MusEYEum Online Catalogue

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Chart for Fused Bifocals For 'Twofo' and 'Perflex' Blanks
ARCHIVAL ITEMS
selection chart
United Kingdom Optical Company Ltd
Europe: United Kingdom
20th c.
card
overall: 385 x 516 mm

Cardboard chart, yellow, folding style with suspension loops for hanging. Printed in black and red with stock range chart plotting reading additions (dioptres) against convex and concave segment side surfaces.


2002.284

Paul Fairbanks Archive



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thumbnail Chart for Fused Bifocals For 'Twofo' and 'Perflex' Blanks
United Kingdom Optical Company Ltd
20th c.
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