"Bushnell's Turtle" which was also the first such boat to be used in warfare. Scarce D.S. 1p. 9" x 4", [n.p., n.d.], certifying that "...the above Named Nathaniel Osbourn Segt. belongs to my Company, is now in active Service, and is accounted in the Quota of the State of Connecticut D. Bushnell Copt. Senior Officer in the Corps of Sappers and Miners." Trimmed at top, light toning along folds, otherwise very good.