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Hydrometer in original case. 1900

Antique hydrometer manufactured in the late nineteenth century or early twentieth century. In perfect condition.....

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Antique hydrometer manufactured at the end of XIX century or beginning of XX century. In perfect state of preservation and totally complete, including the smallest and lightest weights. The hydrometer is an instrument used to determine the relative density of liquids without having to calculate the mass and volume beforehand.

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