Vacuum Gauge c. 1860

"Vacuum Gauge" is a brass gauge designed by E. Bourdon in Paris, c. 1860. The gauge features a circular dial with a needle pointing to a numerical scale. The dial also displays "INDICATEUR DE VIDE," which translates to "Vacuum Indicator" in English. The object's design, including the wooden handle, and its inscription suggest it was used for measuring vacuum pressure in industrial settings. This brass gauge is a testament to the advancement in instrument design and its role in the Industrial Revolution.