Protractor for marking up ophthalmic lenses

Catalogue Number: 2220
Protractor for marking up ophthalmic lenses
Category: Equipment
Sub-Category: Dispensing tool
Corporation: Melbourne Optical Company
Year Of Publication/Manufacture: c 1950
Time Period: 1940 to 1999
Place Of Publication/Manufacture: Melbourne, Australia
Publisher/Manufacturer: Melbourne Optical Company
Description Of Item: Protractor for marking up ophthalmic lenses prior to cutting and shaping the lenses and fitting them in a spectacle frame, metal plate with folded edges, 152 x 203 mm, with hook on back, off-white enamel with a 360 degree protractor, and various other scales. Marked MELBOURNE OPTICAL COMPANY on front.
Historical Significance: This a dispensing aid commonly used in the 20th C to mark lenses so they are correctly centred and oriented when fitted to a spectacle frame after the lenses have been cut to shape and edged,
How Acquired: Donated by Bruce Dudon, Spectacle maker, Woodend
Date Acquired: April 2013
Condition: Good
Location: Archive office. East wall shelves unit 3. Drawer 9

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