U.S.P.O., Philadelphia Pa., 1c Black on Blue Glazed (7LB7).
Large bottom margin, frameline at right is complete, traces of others, uncancelled, used on 1850 folded letter to Burlington N.J., blue "Philada. Pa. 5 cts. Jun. 27" integral-rate circular datestamp, stamp has slight rubbed spots in surface color as usual, Very Fine, very scarce, 17-18 reported in Lyons census (The Penny Post,
July 2006), ex Caspary and Golden, with 2000 P.F. certificate declining opinion as to whether the stamp originated on this cover
Image Magnifier / Download