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 |