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Date: |
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Description: | EARTH INDUCTOR COMPASS //PATENT//191695//HENRY HUGHES & SON LTD/59 FENCHURCH ST//LONDON E.C.//AERONAUTICAL INSTRUMENT CO. PITTSBURG //U.S.A.
WESTERN GALVANOMETER//WESTON INSTRUMENT CO. NEWARK NJ. U.S.A.//MODEL 375 NO. 12133
Base-Unpainted aluminium plate, a galvanometer is fitted at centre. Fitted on the base plate is a second plate 8" (20.3cm) dia. with a hole at the centre to take the galvanometer, the outer edge of the plate is graduated to 360 degs.
Inscription.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | earth inductor compasses | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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