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prism
OPHTHALMIC LENSES
prism
20th c.
plastic
overall: 40 mm x 60 mm x 35 mm

Five-side prism, in the form of an irregular polygon, with triangular section at one end and pyramid-shaped at other end.


2019.184

Gift of Mr Archie Toppin, 2019



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2019.184.jpg

2019.184b.jpg

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