Lot 19Philadelphia, Pa., U.S.P.O. Despatch, 1850-52, 1¢ gold on black, large margins to just touching at bottom left, pencil canceled on folded letter to New York, letter datelined "Philadelphia, 11 August 1851", in combination with 1851, 3¢ orange brown tied by deep red grid handstamp, matching "Kensington, Pa., Aug 11" cds alongside, Very Fine, an extremely rare usage of a Philadelphia letter with the Gold on Black carrier used for service to the Kensington post office, ex-Caspary & Meyersburg; with 1997 P.F. certificate.
Scott No. 7LB11+10 Estimate $500 - 750.