Lot
30 
Philadelphia, Pa., U.S.P.O. Despatch, 1850-52, 1¢ black, fine single just tied by red star handstamp on local P.O. box address cover with second strike alongside, clear blue "Philadelphia, Pa., Sep 16" cds and matching "1" in octagon handstamp, Very Fine, ex-Hollowbush & Meyersburg; with 1997 P.F. certificate. Scott No. 7LB13 Estimate $4,000 - 6,000.
A UNIQUE TIED EXAMPLE OF THE PHILADELPHIA BLACK CARRIER ON COVER PREPAYING THE DROP RATE TO THE POST OFFICE.