Astigmatic fan
- Made:
- 1851-1950
Astigmatic fan, cardboard, English, 1851-1950
Details
- Category:
- Ophthalmology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A626794
- Materials:
- paper
- Measurements:
-
height 660 mm
height 347 mm
- type:
- astigmatic fan charts
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