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Image
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3
Non-Commercial Use
3
Category
Optics
2
King George III
1
Object type
lens
1
prism -optical
1
prism -optical demonstration
1
Maker
Ladd, William, w.1839-1872
2
William Ladd
2
Place of origin
London
2
London, Greater London, England, United Kingdom
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Four crown glass convex lenses
Two prisms
1872
Equilateral prism
1872