(Maryland) Pleasant Grove, Md./July 1. Bold rimless datestamp in red with "July 1" changed in manuscript to "13" on 1850 folded cover to his sister in Salem N.C. with free frank of E.S. Zevely, and matching "FREE" handstamp, personal letter with interesting content…Am just now busied, making woodtypes, P.O. stamps…, some light water staining at top, otherwise Very Fine, a rare postmark and an illegal use of the free franking privilege. Estimate  $300 - 400. $0 (Image)