Azure, a torteau within an annulet Argent, on a chief of the last three fleurs-de-lis of the first.
That for the regiments and separate battalions of the U.S. Army Reserve: On a wreath of the colors Argent and Azure, the Lexington Minute Man Proper. The statue of the Minute Man, Captain John Parker (H.H. Kitson, sculptor), stands on the Common in Lexington, Massachusetts.
VERUS AD FINEM (True To The End).
Blue is the Infantry color. The red disk encircled with the white ring is from the state flag of Ohio to which state the 330th Infantry was allocated in 1921. The fleurs-de-lis on the silver chief are from the coat of arms of Le Mans, where the Regiment received its training during World War I.
The crest is that of the U.S. Army Reserve.
The coat of arms was originally approved for the 330th Infantry Regiment on 25 March 1927. It was redesignated for the 330th Regiment on 3 August 1960.