Test type charts (4)
- Made:
- Unattributed
Test type charts (4), invented and supplied by Cowan and Sons, Manchester, English, 1940-1970
Details
- Category:
- Ophthalmology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A608274
- Measurements:
-
height 519 mm
width 380 mm
- type:
- test types
