(Tools & Hardware) Smith, Seltzer & Co., Foreign and Domestic Hardware. Illustrated corner card cover showing Coffee Mill, on cover to Florence, Italy, franked with 2¢ red brown + 1¢ ultramarine + 2¢ green tied by 1887 Philadelphia, Pa duplex postmarks, reverse with illustrated ad showing various home appliances, Very Fine, an unusual franking. Scott No. 210+212+213  Estimate $75 - 100. $0 (Image)