Orthops optical rule, wood and steel, by Raphael's of London, early 20th century
Details
- Category:
- Ophthalmology
- Object Number:
- 1977-627/13
- Materials:
- boxwood and steel (metal)
- Measurements:
-
overall: 4 mm x 230 mm x 55 mm, 0.024 kg
- type:
- optical rule
- credit:
- Spread Eagle Antiques