Airmail, 1918, 24¢ carmine rose & blue, Fast Plane Variety. Bright colors, beautiful centering leaving jumbo margin at bottom, with pronounced forward shift in plane vignette, o.g., never hinged, Very Fine, scarce and desirable variety; with 1989 P.F. certificate. Scott No. C3  Estimate $300 - 400. $0 (Image)