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Title: Four glass excise hydrometers by Oertling. Mercury weights a [Go to resource]
Description: Four glass excise hydrometers by Oertling. Mercury weights and paper scales. In mahogany caes. No. 1 equals range 1000 - 1050, No. 2 equals range 1050 - 1100, No. 3 equals range 1100 - 1150 and No. 4 1150 - 1200. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: hydrometer Temporal: 1870-1940 Source: Science Museum Creator: Oertling Identifier: 2005-434 Go to resource More Like this...
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