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Sphero-cylindrical lens and envelope
OPHTHALMIC LENSES
lens
United Kingdom Optical Company Ltd
Europe: United Kingdom, England, London
Mid 20th c.
glass; paper
envelope: 57 mm x 57 mm; overall (lens): 47 mm

Round glass sphero-cylindrical lens blank, unedged. Together with original supplier's square-shaped white paper envelope, front overprinted in black and orange, with UK logo and with specimen type stamped on to top.


2011.31

Gift of Mr Graham Banyard, City University, 2011



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