FBI agent responsible for the capture of John Dillinger, ‘Pretty Boy’ Floyd, ‘Baby Face’ Nelson, and other notorious bad boys. Personal check, 8.5 x 3, filled out and signed by Purvis, payable to Best and Co. for $19.95, January 19, 1943. Usual cancellation holes and bank stamps, with a red stamp on the reverse showing through a bit in the signature area, otherwise fine condition. R&R COA.