DIMSDALE, THOMAS J. The Vigilantes of Montana, or Popular Justice in the Rocky Mountains. Being a correct and impartial narrative of the chase, trial, capture and execution of Henry Plummer's Road Agent Band... Virginia City, M. T.: Montana Post Press, D. W. Tilton & Co., 1866. 12mo, contemporary sheep, upper cover detached, piece missing at head of spine; faint stamp "Twin Bridges Mont. Feb 15" on title-page. FIRST EDITION of "not only the first, but textually the most important, book ever printed in Montana" (Howes). Graff 1086; Howes D345.