Philadelphia, Pa., U.S.P.O. Despatch, 1850-52, 1¢ gold on black. Clear to large margins, tied by red "Philadelphia, Pa., 5cts Paid, Sep 15" cds on cover to Elizabethtown, Pa., second strike of postmark and matching "Paid" boxed handstamp, cover with small stain spot and some wear, F.-V.F.; with 2000 P.F. certificate. Scott No. 7LB11  Estimate $750 - 1,000. $0 (Image)