Complex 19th C trial frame

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

Search the archive:

Author or Inventor:
Catalogue #
Name of Donor