Aräometer (Hydrometer), as used in many Ships and U-Boats! Was used by crew members to test the density / salinity of salt water. This was important when determining the torpedo time delay settings on U-Boats. Made of glass and steel. This is a SUPERB example, and comes COMPLETE with it’s original cardboard tube! Numerous markings… (read more)
Aräometer (Hydrometer), as used in many Ships and U-Boats! Was used by crew members to test the density / salinity of salt water. This was important when determining the torpedo time delay settings on U-Boats. Made of glass and steel. This is a SUPERB example, and comes COMPLETE with it’s original cardboard tube! Numerous markings… (read more)
Aräometer (Hydrometer), as used in many Ships and U-Boats! Was used by crew members to test the density / salinity of salt water. This was important when determining the torpedo time delay settings on U-Boats. Made of glass and steel. This is a SUPERB example, and comes COMPLETE with it’s original cardboard tube! Numerous markings… (read more)
