N/A US Army Corp. of Engineers Brass Insignia Lapel Pin

US Army Corp. of Engineers Brass Insignia Lapel Pin Weight: 7.15 grams Measurements: approximately 1 x 1.25 inches This item is a vintage U.S. Army Corps of Engineers castle collar insignia pin featuring a triple-turreted castle, which has been the official branch insignia for the Army Corps of Engineers since 1840. Historically worn by officers on their uniform collars, and now frequently used as a lapel pin or hat pin.