Orthops test type
- Made:
- 1901-1930
Orthops test type, combined for distance and astigmatism, card, English, early 20th century
Details
- Category:
- Ophthalmology
- Object Number:
- 1977-627/24
- Materials:
- complete, card, paper (fibre product), textile and metal (unknown)
- Measurements:
-
overall: 950 mm x 630 mm x 30 mm,
overall (lying flat): 7 mm x 622 mm x 107 mm, 1.802 kg
- type:
- test types
- credit:
- Spread Eagle Antiques
