Bold ink signature, “Mr. A. Jackson Jnr.,” on a 6 x 3.25 (panel size) postal cover addressed in his hand to Col. David Campbell in Abingdon, Virginia. A docket on a flap dates the item to 1830. Vertical fold with associated light soiling (touching “Jnr.”), otherwise fine, bright condition. Auction LOA John Reznikoff/PSA/DNA and R&R COA.