Product Details

Pocket compasses like this one were essential tools for navigation, particularly for military engineers during World War I. The "ENG. DEPT: U.S.A. 1918" inscription clearly indicates its service with the United States Army Corps of Engineers during that conflict. The "USANITE" marking likely refers to a proprietary casing material or a specific model designation by the manufacturer, Taylor Instrument Companies, known for producing navigational instruments. The patent date "APR 20-916" suggests the design or a component of the compass was patented in 1916, aligning with its use during the war. These instruments provided crucial directional information for troop movements, reconnaissance, and construction projects in varied terrains, making them vital for operational success.