Welcome to the online catalogue of the British Optical Association Museum. Here you can search for both museum artifacts and archives. Data is transferred from our Collections Management System to this website on a regular basis.
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Objects
Orthops Rule MANUFACTURING AND DISPENSING EQUIPMENT rule Raphael's Ltd Europe: United Kingdom, England, London Early 20th c. wood overall: 53 x 275 mm
Boxwood rule with inset scale of the same wood and radial grooves. Inscribed scales on both sides.