(Merchant) John Hearn & Co., Forwarding & Commission Merchants. Blue embossed cameo corner card, on cover franked with four mostly large margin 1851, 3¢ brownish carmine tied by sharp Erie, Pa. cds; cover with narrow edge toning at left, still Extremely Fine; with 2009 P.F. certificate. Scott No. 11  Estimate $100 - 150. $0 (Image)