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Title: Douglas Protractor [Go to resource]
Description: Plastic protractor graduated from 0-360 degs. Label giving instructional methods of use on front of cardboard carrying case. Inscription. caption: Douglas combined protractor and parallel rule - Front Publisher: "http://collections.rmg.co.uk/" Rights holder: "Royal Museums Greenwich" Subjects: protractors Source: Royal Museums Greenwich Identifier: http://collections.rmg.co.uk/collections... Go to resource More Like this...
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