World's Fair Sta./Chicago, Ill./May 21, '93/Rec'd. Backstamp (Bomar C93-03) on unsevered 1¢ Postal Card with Reply, Reply card addressed to "World Columbian Expo./Machinery Hall/German Division" with "World's Fair Station/May 19" machine cancel (Bomar C93-11B), Postal card with same address & postmarked "World's Fair Sta./May 20, '93/Chicago, Ill." Numeral "2" duplex cancel (Bomar C93-02), Very Fine, a most unusual item & the earliest recorded example of the Received marking. Estimate  $500 - 750. $0 (Image)