Vintage US Army Engineering Department Pocket Compass 1917 Ultranite Silver

This vintage US Army Engineering Department pocket compass dated 1917 is a highly collectible military navigation instrument from the World War I era. Sought after by collectors, this compact compass represents early American field engineering equipment and period military craftsmanship.

The compass is pre-owned and shows clear signs of age, including surface wear, patina, oxidation, and dial discoloration consistent with long-term use and storage. The hinged cover opens and closes properly, and the original loop and crown remain intact.

Constructed with a silver-toned metal case, this example features a marked dial reading “Ultranite,” directional indicators, and period patent markings. The rear case is stamped “Eng. Dept. U.S.A. 1917,” confirming its military issue origin. The compass weighs approximately 43.6 grams.

Compasses like this were essential tools for U.S. Army engineers during World War I, used for surveying, mapping, and field navigation. Ultranite dials were designed to improve visibility in low-light conditions common in trench and field operations.

Military historians, World War I collectors, and antique instrument enthusiasts will value this piece for its documented date, military markings, and authentic field-used character. It also displays well as a historical artifact.

This item has been visually inspected for authenticity and condition and is offered as a genuine vintage military collectible sourced through secondary markets.

Did You Know? During World War I, U.S. Army engineering units relied heavily on pocket compasses for trench layout, artillery positioning, and battlefield navigation.

Disclaimer: All trademarks and brand names are the property of their respective owners. California Auction Company is not affiliated with or endorsed by any brand.