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Nikon 20 D Clear Coat condensing lens.
OPTOMETRIC INSTRUMENTS
condensing lens
Nikon
Asia: Japan
1980s
glass; metal; leather
overall (case): 32 mm x 68 mm x 75 mm; overall (lens): 18 mm x 55 mm
2011.685/4
OPTOMETRIC INSTRUMENTS
condensing lens
Nikon
Asia: Japan
1980s
glass; metal; leather
overall (case): 32 mm x 68 mm x 75 mm; overall (lens): 18 mm x 55 mm
Condensing lens for indirect ophthalmoscopy. 20 dioptres, metal rimmed with twin bands of knurled grip. Contained within oval black leather case with press-stud fastening. Lens rim features yellow-painted UMIST property mark.
2011.685/4
Gift of the Marton Library Trust, 2011