Inventor of the Colt revolver and founder of the Colt Firearms Company (1814-1862). Bold and crisp ink signature as part of an address panel, "Mrs. Col. Sam'l Colt, Hartford, Conn't,” on an off-white 4.25 x 1.75 slip clipped from a mailing envelope. In fine condition. Encapsulated in a PSA/DNA authentication holder.