A Gold color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Or, an oak tree Proper charged with a fleur-de-lis Argent. Attached below the shield is a Green scroll inscribed "PORTONS LES FARDEAUX" in Gold letters.
This organization did very excellent work at Soissons and in the Argonne south of Sedan. The arms of Soissons are a red field with silver fleur-de-lis and those of Sedan a bear leaning against an oak tree. The shield is gold or yellow, this being the nearest heraldic equivalent to the buff of the Quartermaster Corps. On the shield is a green tree for the Argonne forest and against the foliage is a silver fleur-de-lis for Soissons.
The distinctive unit insignia was originally approved for the 1st Division Quartermaster Train on 1 May 1928. It was reassigned to the 1st Quartermaster Regiment on 27 March 1936. It was redesignated for the 1st Quartermaster Battalion on 9 September 1940. The insignia was rescinded on 3 June 1958. It was reinstated and redesignated for the 1st Supply and Transport Battalion on 6 February 1964. It was redesignated for the 101st Support Battalion with the description amended on 5 June 1987.