Lot
2639 
1908, 1¢ green, D.L. watermark, Schermack type III perfs, 9-hole control perfin missing pins 4, 5, 7 & 8 - Perfin Catalog 90-56 - neatly tied by a 1910 New York machine cancel on a fabulous De Laval Separator Co. two-color illustrated (both sides) advertising cover to Earleton Kans., Very Fine. A beautiful cover. Scott No. 343 $500.