1838 (May 16) Washington, D.C. To St. Louis, Mo., red cds with matching "Paid" handstamp on 1838 folded letter, manuscript "75" express single rating, endorsed "Express Mail" at top left and "Charge Off. Ind. Affairs" at top right; fold splitting, otherwise Very Fine, a scarce Indian Affairs Office East to West express use. Estimate  $500 - 750. $0 (Image)