In an effort to save money, the U.S. Army issued an order that N.C.O.s’ were to wear chevrons on one arm only.
WW1 US Army N.C.O.s ordered to wear chevrons on one armUS Army WW1 Military Insignia triviaWW 1 Military Insignia triviaVintage Uniform triviaUniform Collector InformationWorld War One American Uniform RegulationsArticle World War One American Uniform nco stripes