U.S.P.O., Philadelphia Pa., 1c Black on Rose (7LB6).
Three framelines, slight crease, uncancelled, used on 1849 folded letter to Wrentham Mass., blue "Philada. Pa. Oct. 4/10" integral-rate circular datestamp, fresh and Very Fine appearance, rare (only 10 reported covers), signed Lowe
Image Magnifier / Download
Power Search for Comparables