(Clothing) W.E. Schmertz & Co., Manf'rs of Boots & Shoes, Pittsburgh, Pa., multicolored allover ad design showing Building Scene, franked with 1883, 2¢ red brown tied by 1888 Pittsburgh, Pa. duplex postmark, reverse with matching allover ad text and design, Very Fine, one of the most colorful advertising designs known; with 2011 P.F. certificate. Scott No. 210  Estimate $750 - 1,000. $0 (Image)