Rhode Island Military button, United Train of Artillery, D Evans 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, transitional use ca 1860 to post war, (Evans02Var). Two part convex button, coat size. Nondug button, gilded, stand up shank.
Ref: Albert RI33, Tice, not listed.