As a data point, last week the Kelleher auction house offered this example:
Quote:
Lot 1383. 1909, 4¢ orange brown, bluish paper (360), o.g., lightly hinged, spectacular top quality example of this incredibly rare 4 cent Bluish Paper; a handsome wide margined example with gleaming rich color and finely detailed impression; as this stamp is almost always found off centered, finding one like this is a remarkable accomplishment; we cannot recall ever offering a finer example of this stamp; PSE's population report lists only two other examples grading higher than the VF-80 that this stamp received from the Philatelic Foundation; deserving placement in a collection of distinction, Very Fine, approximately 80 examples are known to exist; with 2013 P.F. certificate graded VF 80. SMQ VF 80; $32,500. Scott $27,500. Estimate $30,000 - 40,000.
A bid was entered for $16,000, but this apparently not meeting the reserve, the lot was passed and not sold.