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H. L. Rule
MANUFACTURING AND DISPENSING EQUIPMENT
rule; pupillometer
Henry Laurance; Whitehead & Hoag Co
Europe: United Kingdom, England, London
Late 19th c.
ivorine
overall: 60 mm x 126 mm
2015.119
MANUFACTURING AND DISPENSING EQUIPMENT
rule; pupillometer
Henry Laurance; Whitehead & Hoag Co
Europe: United Kingdom, England, London
Late 19th c.
ivorine
overall: 60 mm x 126 mm
Optician's lens and pupillary distance rule. Thin ivorine rectangular form, with scales and conversion tables printed on front and reverse.
2015.119
Gift of Mr and Mrs Peter and Lorna Wilson, 2015