Collection of biconvex and plano-convex lenses

Catalogue Number: 3228
Collection of biconvex and plano-convex lenses
Category: Spectacles and lenses
Sub-Category: Spectacle lenses
Year Of Publication/Manufacture: c 1900
Time Period: 1900 to 1939
Description Of Item: Six edged biconvex lenses of assorted powers, four oval shaped, two round and two uncut plano-convex lenses, one with focal length labelled in dioptres and inches. Powers range from +1.50 to +4.25
Historical Significance: Edged lenses were available for immediate fitting to specific frames, the uncut ones would allow selection of any frame and the lenses to be cut to shape.
How Acquired: Donated by Wayne Lyons Optical dispenser, Malvern Optical Clinic
Date Acquired: 26/11/2016
Condition: Good. two lenses have small chips.
Location: Archive office. East wall shelves unit 3. Drawer 8

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