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Orthops Rule
MANUFACTURING AND DISPENSING EQUIPMENT
rule
Raphael's Ltd
Europe: United Kingdom, England, London
Early 20th c.
wood
overall: 54 mm x 276 mm
2016.1081
MANUFACTURING AND DISPENSING EQUIPMENT
rule
Raphael's Ltd
Europe: United Kingdom, England, London
Early 20th c.
wood
overall: 54 mm x 276 mm
Boxwood rule with inset scale of the same wood and radial grooves. Inscribed scales on both sides. Drilled hole at one end.
2016.1081
Transferred from the former Museum and Library of Optometry, Aston University / Gift of the family of the late Anthony G. Sabell FCOptom, 2016