Original Japanese WWII Navy D.C. Voltmeter with Wooden Housing by TEW Percusion Muskets Each end has gilt wire

Each end has gilt wire tassel with maroon wool base

I should think the occupants were feeling pretty vulnerable at the time

- An extremely rare example of an original U

Each round is approximately 8" in length

Manufactured in Brown Leather and embossed U

Original Japanese WWII Navy D.C. Voltmeter with Wooden Housing by TEW Percusion Muskets Each end has gilt wireOriginal Item: A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit. A voltmeter in a circuit diagram is represented by the letter V in a circle. These were widely used by the Imperial Japanese Navy during WWII, as there were numerous electrical circuits and devices on ships that needed