1884 Industrial & Cotton Centennial Exposition (New Orleans La.), all-over ad on reverse of 2¢ entire bearing 1882, 1¢ blue and 1883, 2¢ red brown tied by "New Orleans La. Jul 2 1884" duplex to Zurich, Switzerland, Zurich (7.19) arrival backstamp, Very Fine. Estimate  $200 - 300. $0 (Image)