A Hydrometer is a device for measuring the relative levels of different substances in a liquid - in this case, it was used to measure the strength of Alcohol in spirits. A vintage breathalyser!
This rare set comes in its original box. A great display piece for a high-quality wine merchant's window.
Dujardin-Salleron has been manufacturing measuring devices and instruments since 1855 - and are still in operation today.
Manufacturer: Mon. Salleron Dujardin, Paris.
Date Approx: 1880-1890
Size Approx.: Medium
Case: H 6.7 cm x W 35.5 cm x D 30 cm
Weight: 1.7 kg
Medium: Glass, Lead, Shot, Wood. Embossed 'Alcoometres Controles'.
Condition: Good. Some age-related wear to box.