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Title: N [Go to resource]
Description: N.P.L. design horizontal projector by Precision Tool and Instrument Co. Ltd., c. 1945, including 4 1/2in. x 2 1/4in. lens, work stage, 2 shadow protractors 24 thread form templates, wall screen, floor rails, focussing pulleys, 2 cards License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1945 Source: Science Museum Creator: Precision Tool and Instrument Co. (maker) Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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