(Missouri) "Jackson, June 20th", manuscript postmark on 1817 folded letter with manuscript "Free, J. McFerron, P.M." free frank endorsement, Very Fine, This is the latest recorded use of this Jackson manuscript postmark. Estimate  $400 - 600. Jackson is located about 15 miles from the Mississippi River in Cape Girardeau County. The post office was established in 1811. This letter was written by Joseph McFerron who was the postmaster at Cape Girardeau. $0 (Image)