Meyer Brothers Drug Co. Set of five different illustrated advertising corner cards in different colors for the "1903 St. Louis World's Fair", all used in 1901 & franked with 2¢ Bureau Issue or 2¢ Pan-Am & tied by St. Louis machine cancel, three adhesives with minor flaw, Extremely Fine. Estimate  $200 - 300. Interestingly, the covers show advertising for the 1903 World's Fair. The Exposition was indeed scheduled for 1903, but was delayed one year due to construction delays. $0 (Image)