Lot
4233 
Airmail, 1918, 24¢ carmine rose & blue, "grounded plane" variety, bottom margin block of 4, o.g., never hinged (P.F. states previously hinged in which the P.S.E. and we disagree), a striking extreme downward vignette shift with wheels extending almost entirely into "Cents" in the bottom frame, rich vibrant colors and fresh paper, bottom left stamp with trivial light natural wrinkle (P.F. calls a small internal crease), Extremely Fine, ex-"Saddleback", J. Hoffman & W. Gross. Scott No. C3 var. Estimate $30,000 - 40,000.
ONE OF THE FINEST KNOWN MULTIPLES OF THE 1918 24¢ JENNY "GROUNDED PLANE" VARIETY BEARING ONE THE MOST DRAMATIC SHIFTS OF THIS VARIETY.
The so-called "Grounded Plane" vignette shift, which is believed to have come from portions of only three sheets, is when the wheels of the biplane come though into the "Cents" in the bottom frame.