Catalogue Number: 3627 Willesden Optical Works Datum Rule Instructions Category: Papers Sub-Category: Ophthalmic product manual/instructions Year Of Publication/Manufacture: 1950s Time Period: 21st C Description Of Item: A4 copy of Willesden Optical Works Datum Rule Instructions Sheet. Original c 1950s Historical Significance: Willesden Optical Works Ltd operated in London and Sheffield UK producing optical dispensing equipment as well as running an optical dispensing laboratory.This copy is of an original held by the British Optical Association Museum. The instructions do not apply precisely to the Willesden Optical Works Datum Rule Cat. No. 3618 held by the Kett Museum. How Acquired: Donated by Neil Handley, Curator, British Optical Association Museum Date Acquired: 30/7/2018 Condition: Excellent Location: Archive office. Pamphlet and ephemera filing cabinet. Drawer 8 |