(Cameo) Pennsylvanian Office. Illustrated cameo corner card with "Colbert" imprint showing Printing Press, franked with 1851, 3¢ dull red tied by "Philadelphia, Pa., Mar 19" cds; cover and stamp flaws, F.-V.F. appearance. Scott No. 11  Estimate $75 - 100. Wm. Colbert ran a large envelope factory in Philadelphia. $0 (Image)