Steam engine (2) - Brass - 1850-1900 - Salinometer.

Two late 19th-century salinometers - test cups.
Used on steamships to measure the salinity of boiler water.
Made of brass with wooden handles.
In good used condition, minor wear on the rim.
Dimensions are H 30 - W 16 - D 13 cm.
Total weight is 2 kg.