Lens clock for measuring the curvature of the surfaces of ophthalmic lenses
 Catalogue Number: 3472 Lens clock for measuring the curvature of the surfaces of ophthalmic lenses Category: Equipment Sub-Category: Lens measure, lens clock Time Period: 1900 to 1939 Description Of Item: Small lens clock to measure spectacle lens surface curvature, calibrated in Dioptres ( + and - 0 to 10). Chromed brass & glass. Marked: ENG PAT 28784.11 / FOREIGN PATENTS PENDING' Historical Significance: This lens clock was previously owned by Miss Ella Lillian May Pink (1890-1986) an Australian woman who qualified in optometry in London in 1915 and practised optometry in Australia from 1917 until September 1953. How Acquired: Donated by Noel Dawson (Ella Pink collection) Condition: Good Location: Archive office. East wall shelves unit 3. Drawer 1 |