Lot
2105 
1919, 1¢ green, Offset imperf, horizontal strip of three, tied by "Brooklyn, N.Y. Appr 2, 1919" wavy machine cancel on cover to Philadelphia Pa., Very Fine; with 2006 A.P.S. certificate. Scott No. 531 Estimate $750 - 1,000.
THE EARLIEST DOCUMENTED USE OF THE 1919 OFFSET IMPERFORATE ISSUE.