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Professor Schiøtz Improved Tonometer & case
OPTOMETRIC INSTRUMENTS
tonometer
London Optical Company Ltd
Europe: United Kingdom, England, London, EC2
c.1955
metal
case: 25 x 160 x 83 mm

Tonometer. White metal. Comprises plunger, inner cylinder, lever with red-tipped pointer and convex test plate. Also a set of supplementary weights and pipe cleaner. Yellow instruction leaflet and calibration scale (dated 1955), plus signed green certificate of accuracy (dated 28.2.1968) stored behind flap inside lid. Contained in black hinged case with two white metal clasps and blue velvet lining.


2004.22

Gift of Mr Brian Mitchell, 2004



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