single with unofficial Chicago perforations measuring 12½, tied by "Chicago Ill. Jan 21 1857" datestamp to cover to Shelbyville, Illinois, stamp with small faults including both lefthand corners damaged before application, otherwise fine appearance, the so-called "Chicago perforations" were created by Elijah W. Hadley, the entire history of this stamp can be found in articles by Jerome Wagshall and Wilson Hulme (Chronicle Vol. 38, No. 2 and Vol. 49, No. 2-3), 1984 Philatelic Foundation certificate