Pantographic Datum Rule
 Catalogue Number: 3618 Pantographic Datum Rule Category: Equipment Sub-Category: Dispensing tool Corporation: Willesden Optical Works Ltd Year Of Publication/Manufacture: c 1950 Time Period: 1940 to 1999 Place Of Publication/Manufacture: London, England Publisher/Manufacturer: Willesden Optical Works Ltd. Description Of Item: Aluminium rectangular pantograph 150 mm x 70 mm mounted on white plastic base 155 mm x 75 mm with triangular extension 25 mm long with centimetre and inch scales on edges and graduations marked bridge height, eye size and PD, joint height, segment below datum and a central datum line. The words WILLESDEN OPTICAL WORKS LTD., DATUM RULE and COPYRIGHT appear in the lower section of the base. The triangular section has millimetre graduations titled Inset and base. R Kaye is engraved on the base and lower pantograph arm. How Acquired: Donated by Robert Kaye Date Acquired: 4/3/2014 Condition: Good Location: Archive office. East wall shelves unit 3. Drawer 10 |