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"Hydrometer" in what
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Hydrometer
made in Dundee
© National Museums Scotland
000-100-102-721-C
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Hydrometer
probably made in Edinburgh
© National Museums Scotland
000-100-104-211-C
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Hydrometer
probably made in London
© National Museums Scotland
000-100-104-298-C
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Hydrometers
probably made in Glasgow
© National Museums Scotland
000-190-004-180-C
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