(Home Products) Dobbins' Electric Soap, illustrated ad design with hand-colored vignette, showing Black Women at Wash Basin with racial slogan at side, franked with 1873, 3¢ green tied by "Philadelphia, Pa., Oct 12" duplex postmark, Extremely Fine; with 2013 P.F. certificate. Scott No. 158  Estimate $150 - 200. $0 (Image)