Lot 66
(Chicago, Ill.) Flag, perfect bold strike in blue duplexed with "Chicago, Ill, 15 Nov" cds ties 3¢ green (158), s.e. at right, on light buff Mason & Hamlin Organ Co. corner card cover to Saranac Mich.; reduced slightly at left, an Extremely Fine and choice strike.Cole No. FL-18 Estimate $4,000 - 6,000.
ONE OF THE RAREST CHICAGO BLUE FANCY CANCELS, THE ONLY RECORDED ON-COVER EXAMPLE WITH THE 1870-88 BANK NOTE ISSUE.
There are only three recorded usages of this rare Chicago Blue cancellation, two strikes on postal cards and the cover offered here.
Realized: $2,600