Trial frame

Catalogue Number: 2894
Trial frame
Category: Equipment
Sub-Category: Trial Frame
Year Of Publication/Manufacture: 1895
Time Period: 19th C
Description Of Item: Complex trial frame, 140 x 55 mm, double lens clip in front of both eyes rotated by screw control, single lens clip at back. Axis scales for each eye covering 185 degrees. Nose rest adjustable for both height and vertex distance by screw mechanisms, with a height scale. Adjustable eye separation with mm scale for interpupillary distance. Slide extending sides with curl ends. Inside of each side is stamped ' PAT APR 30 95 '
Historical Significance: Similar to Cat No 911
How Acquired: Donated by Estate of William Cooper, via Peter Lewis
Date Acquired: April 2016
Condition: Very good
Location: Archive Office. Spectacles cabinet Drawer 5

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