ClipArt ETC
The semicircular protractor used to measure angles by the military.

Semicircular Military Protractor

The semicircular protractor used to measure angles by the military.

A 6 inches diameter protractor to measure angles to half degrees, made of brass or German silver. They are useful in map and topographical work.

Semicircular Protractor

A 6 inches diameter protractor to measure angles to half degrees, made of brass or German silver. They…