Carson's Stage and Express Line, black and red illustrated Four-Horse Stagecoach corner card design on cover to San Francisco, franked with 1883, 2¢ red brown tied by "Leadville Colo Feb 18 1884" postmark, cover with some edge toning and reduced at right into stamp, Fine and attractive, an extremely rare corner card cover from Carson's Stage and Express Line. Scott Nos. 210  Estimate $750 - 1,000. $0 (Image)