1904 Cupples Louisiana Purchase Exposition Jumbo Postcards. Group of six different mint jumbo size multicolor Expo. cards manufactured by "Samuel Cupples" (Megson GI 116 series, missing "Bird's Eye View" & "Palace of Electricity", however included is unlisted "Palace of Agriculture", "Palace of Manufacturers"), Extremely Fine, a rare group in this gem condition. Estimate  $500 - 750. $0 (Image)