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
'See Thru' face rule MANUFACTURING AND DISPENSING EQUIPMENT rule Raphael's Ltd Europe: United Kingdom, England, London c.1910 plastic; celluloid overall: 45 mm x 146 mm x 1 mm
Transparent plastic (celluloid) rule. Six apical radii grooves.