"Beale Collin's Picture Types", wall charts printed on one side with test types for assessing visual acuity of children or illiterates, made by Hamblin of London, 1920-1950
Details
- Category:
- Ophthalmology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A625249
- Materials:
- paper
- type:
- test types
- credit:
- Keeler, C.D.