'pop-eye' optical square, British, 1980-1985

Optical square ('pop-eye') with black plastic case, unsigned

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Optical square ('pop-eye') with black plastic case, unsigned
Science Museum Group
© The Board of Trustees of the Science Museum

Optical square ('pop-eye') with black plastic case, unsigned, British,1980-1985

Details

Category:
Surveying
Object Number:
1985-2228
Materials:
plastic (unidentified) and glass
Measurements:
overall: 32 mm x 80 mm x 28 mm, .08kg
type:
optical square
credit:
Ordnance Survey