Chrome Ebullioscope Volunteer.

The +: chrome model.
Use: allows to measure the alcoholic richness of wines, ciders and vinegars, decorative object.
Rare ebullioscope with hydraulic closing from the Bénévolo house from the end of the 19th century. Copper / chrome-plated brass. The ebullioscope is composed of 4 elements: a boiler, a graduated horizontal thermometer, 1 refrigerant and an alcohol lamp. The instrument is presented in a white stained wooden transport case in which is housed the disassembled model H ebullioscope, a spare wick, a manual with the table of alcoholic richness. Painted steel base. Operation not verified. Very slight trace of use (chimney). Very good condition. Marked Bénévolo optician patented system, Lyon.
Dimensions of the box: 27x17.5 cm. height 11.5 cm.