Simple trial frame
 Catalogue Number: 912 Simple trial frame Category: Equipment Sub-Category: Trial Frame Year Of Publication/Manufacture: c1930 Time Period: 1900 to 1939 Description Of Item: Simple double drop-cell trial frame. Chrome plated metal half-eye frame, axes marked 0 to 180. Straight sliding bridge varies PD from 60 to 70 mm. Straight sides with spatula ends, each stamped '50'. W: 12.5cm x D: 2.5cm How Acquired: Donated by Alan Templeton Condition: Very good Location: Archive Office. Spectacles cabinet Drawer 5 |