Chart Dividers
Also known as a measuring compass, chart dividers are used in cartography (map making), as well as nautical navigation. Manufactured by Bowen & Company, Inc. Serial # 310R and marked with USGS property number "G-154".
Object ID: USGS-000400... Location: Reston, VA, USA
Bevel Protractor
Object has its original Case. A graduated circular protractor with pivoting arm, it is used for measuring or marking off angles. This instrument was manufactured by Bowen & Company and was first used by the U.S. Army Corp of Engineers before being transferred to the U.S. Geological Survey.
Object I... Location: USA