The "Flagship" sale of United States stamps #660

90¢ blue (39), light black cancellation, a nice appearing example of this notoriously difficult genuinely used stamp, with fabulous rich color; as most of the 180 known used examples are faulty from one degree to another, the example offered here is a very pleasing copy of this rarity; repaired, rebacked, and reperforated, also portions on the cancellation added, Fine appearance; 2014 P.S.E. certificate. Scott $11,000.