Block of lenses (4) on iron polishing tool
- maker:
- J H Dallmeyer Ltd
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© The Board of Trustees of the Science Museum
Block of lenses (4) on iron polishing tool, partly polished by J.H. Dallmayer Ltd., London, England, 1909.
Details
- Category:
- Optics
- Object Number:
- 1909-171
- Materials:
- steel (metal), glass and pitch
- Measurements:
-
overall: 40 mm x x , 70 mm, .15kg
- type:
- lenses
- credit:
- Thales UK Ltd
