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Professor Schiøtz X-Tonometer & case
OPTOMETRIC INSTRUMENTS
tonometer
Europe: Norway
Post 1926
metal
2000.27
OPTOMETRIC INSTRUMENTS
tonometer
Europe: Norway
Post 1926
metal
Tonometer. White metal. Comprises plunger, spring clip, inner cylinder, lever with pointer and convex test plate. Illustrated instruction leaflet and two tension conversion charts stored behind flap inside lid. Contained in black hinged case with yellow metal clasp and purple velvet lining (discoloured to brown).
2000.27
Gift of Dr J.M.L. Howat, HonFCOptom, 2000