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C6400 Prism Segment semi-finished blank
OPHTHALMIC LENSES
semi-finished lens
Birch-Stigmat Group Ltd
Europe: United Kingdom
Late 20th c.
glass
diameter: 80 mm; thickness at edge: 6 mm
2005.319
OPHTHALMIC LENSES
semi-finished lens
Birch-Stigmat Group Ltd
Europe: United Kingdom
Late 20th c.
glass
diameter: 80 mm; thickness at edge: 6 mm
Semi-finished lens blank. Crookes Alpha tinted glass. Convex. 22mm prism segment. Marked with painted white line and description.
2005.319
Gift of Sola Optical UK Ltd, 2005