Trial frame
 Catalogue Number: 3822 Trial frame Category: Equipment Sub-Category: Trial Frame Time Period: 1940 to 1999 Description Of Item: Simple double drop cell trial frame. Nickel alloy, impressed axis markings, vaiable PD 60 to 70 mm. Straight sides marked '48' at temple tips and mounts. Dimensions: 150 x 50 x 23 mm. How Acquired: Donated by Gordon Hawley Date Acquired: April 2020 Condition: Excellent Location: Archive Office. Spectacles cabinet Drawer 5 |