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E4600 upcurve semi-finished blank
OPHTHALMIC LENSES
semi-finished lens
Birch-Stigmat Group Ltd
Europe: United Kingdom
Late 20th c.
glass
diameter: 100 mm; thickness at edge: 9 mm
2005.318
OPHTHALMIC LENSES
semi-finished lens
Birch-Stigmat Group Ltd
Europe: United Kingdom
Late 20th c.
glass
diameter: 100 mm; thickness at edge: 9 mm
Semi-finished lens blank. White glass. Convex. 30mm upcurve. Marked with painted white lines and description.
2005.318
Gift of Sola Optical UK Ltd, 2005