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Title: Glass hydrometer by unknown (probably German) maker, and mar [Go to resource]
Description: Glass hydrometer by unknown (probably German) maker, and marked 'araometer'. Range 1.000 - 1.400. 343mm long. Mercury weight and paper scale. In wooden tube, 1870 - 1940. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: hydrometer Temporal: 1870-1940 Source: Science Museum Identifier: 1997-1148 Go to resource More Like this...
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