Rhode Island Button, United Train of Artillery, D Evans & CO. Attleboro dm, (22.5mm) Button depicts "UTA", a snake over crossed cannons, and "1775", intended for United Train of Artillery, Rhode Island. Backmark: "D. EVANS & CO. / ATTLEBORO MASS." dm inner ring of dots. Two part convex button, coat size.
Reference: Albert RI33, Tice, not listed.