1893 Columbian Exposition (Chicago, Ill.). A wonderful balance lot of covers with Expo. cancels & advertising, Expo. cards, trade cards, entrance tickets, etc., included are Expo. duplex cancels, Expo. machine cancels, one cover with Expo. Registry marking, many better 1¢ Postal Expo. cards, an 10c Special Delivery (#E3) tied by Expo. machine cancel on 10¢ Columbian Postal entire with illustrated corner card, a 50¢ Columbian tied on 10¢ Postal entire to Switzerland, plus much more, mixed condition, please inspect as many rare & valuable items are included. Estimate  $5,000 - 7,500. $0 (Image)