Catalogue Number: 911 Complex 19th C trial frame Category: Equipment Sub-Category: Trial Frame Year Of Publication/Manufacture: c1895 Time Period: 19th C Description Of Item: Trial frame; double lens clip to front rotated by long control knob. Single downward pointing lens clip to back. Bridge height and extension adjustable. Variable PD calibrated in inches. Slide extending curl sides. Eye rims stamped; 'PAT NOV.6.94 & PAT JUNE 25. 95'. Sides stamped 'PAT. APR. 30.95.' W: 13.8cm x D: 8.2cm How Acquired: Donated by Brian Flynn Condition: Good Location: Archive Office. Spectacles cabinet Drawer 5 |