Airmail, 1918, 24¢ carmine rose & blue, "Fast Plane" Variety. Single showing strong shift of vignette to the left into frame, o.g., never hinged, strong bright color, well centered, Extremely Fine, a lovely example of this scarce variety. Scott No. C3  Estimate $300 - 400. $0 (Image)

Airmail, 1918, 24¢ carmine rose & blue, "Fast Plane" Variety. 6 singles showing various shifts of vignette to the left into frame, two used with oval cancels, four mint o.g., F.-V.F. overall. Scott No. C3  Estimate $750 - 1,000. $0 (Image)