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 |