U.S. Army Distinctive Unit Insignia – “Aut Vincere Aut Mori” – N.S. Meyer Inc., New York

Original enamel Distinctive Unit Insignia (DUI) of a U.S. Army unit, manufactured by N.S. Meyer Inc., New York (1940s–1950s).
The shield is diagonally divided with green and black stripes; the green field features four crosses.
Above is a blue disc with a silver arrow between wings and the unit motto “AUT VINCERE AUT MORI” (“To conquer or die”).
Made of bronze with colored enamel, pin-back fastening, and the maker’s hallmark on the reverse.