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

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