FBI agent and archetypal 'G-Man' (1903-1960) responsible for the capture of John Dillinger, 'Pretty Boy' Floyd, 'Baby Face' Nelson, and other notorious gangsters. Bank check, 8.25 x 3, filled out and signed by Purvis, "Melvin H. Purvis," payable to cash for $25, February 22, 1943. Encapsulated in a plastic PSA/DNA authentication and grading holder, evaluating the autograph as "Mint 9." In fine condition.