A Silver color metal and enamel device 1 1/4 inches (3.18 cm) in height overall consisting of a shield blazoned: Argent, a pile cottised Azure, charged with a sword bayonet fesswise of the field. Attached below and to the sides of the shield a Silver scroll inscribed "RIDENTES VENIMUS" in Blue letters.
This Regiment was organized in the Canal Zone in 1916, and served there during World War I guarding the canal. This is symbolized by the cotises of Infantry blue on each side of a pile to represent the canal. The motto translates to "Smiling We Come."
The distinctive unit insignia was approved on 8 January 1924.