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Title: Five miscellaneous Twaddell's hydrometers in wood box with t [Go to resource]
Description: Five miscellaneous Twaddell's hydrometers in wood box with thermometer, probably 1930's. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: hydrometer Temporal: 1930 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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