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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
License this image for commercial use at Science and Society Picture Library
License
Science Museum Group
© The Board of Trustees of the Science Museum
Bishop Harman diaphragm test set, made by Gowllands Ltd
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London
Bishop Harman diaphragm test set, made by Gowllands Ltd., Croydon, Surrey, 1920-1937
Details
- Category:
- Ophthalmology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A657812
- Materials:
- shaft, metal, chin rest, metal, chrome, fittings, metal, chrome and handle, wood
- Measurements:
-
length 421 mm
with handle extended: height 236 mm
max.: width 102 mm
- type:
- diaphragm test sets
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