Postal Card, 1893 Columbian Exposition Postal Cards. Mint cards including two complete Set No. 2 issues with wrappers (EX15-EX24, EX24Wc), complete Set Nos. 4 & 6 (EX35-EX44, EX50-EX61), complete Koehler Set No. 7 (EX62-EX73) and 13 additional duplicates (one used), sets fresh and, Very Fine. 2005 UPSS $2,400+. Estimate  $500 - 750. $0 (Image)