(Carriage) Kimball & Gorton (Coach) Makers, illustrated ad design on reverse of cover showing Two-Horse Rail Streetcar, franked with 1857, 3¢ dull red (s.e. at right) canceled by grid handstamp, "Philadelphia, Pa., Jun 2, 1858" octagon date stamp alongside, Very Fine and choice. Estimate  $100 - 150. $0 (Image)