18th C Ivory hydrometer in rozewood case.
On application
An 18th centruy Ivory hydrometer in an original rosewood case. In the reservoir are several of lead weightballs to adapt the weight of the hydro-meter which is required to determine the liquid. By changing the number of lead balls in the container, the weight of the specific hydro-meter can be changed. There is a scale of 1 to 12 over a length of 5.7 cmand there is a “P”engraved in the hydrometer. The Hydrometer length is 11 cm, and the rosewood case has a diameter of cm. Im good condition.