1898 Trans-Mississippi Exposition Official Corner Cards. Lot of three covers all with Official corner cards including "Bureau of Admissions" franked with 1¢ Trans-Miss., 2nd of the "General Offices" in blue with large illustrated Expo. Logo (small cover tear), last is "Dept. of Publicity and Promotion" in blue with illustrated United States Government logo of Eagle & Shield, franked with 1¢ Trans-Miss., Very Fine and scarce. Estimate  $200 - 300. $0 (Image)