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Title: Tuning fork for operating a time-marker, by the Cambridge In [Go to resource]
Description: Tuning fork for operating a time-marker, by the Cambridge Instrument Co. Ltd. (No.L - 105235) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Cambridge Instrument Company Limited Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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