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p.d. gauge
OPTOMETRIC INSTRUMENTS
pupillometer
Europe:
Mid-late 20th c.
metal; plastic
overall: 34 mm x 185 mm

Pupillary distance gauge (adjustable for p.d. 40mm-80mm). Two D-shaped plastic tabs with centrally marked crosses, one fixed at the end, the other one mobile with a metal textured thumb grip. Metal bar set into black bakelite handle.


2010.560

Gift of Mr Brian Mitchell, 2010



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