Airmail, 1918, 24¢ carmine rose & blue, o.g., never hinged, exceptional centering amid well balanced margins, radiantly rich color on bright paper, Extremely Fine to Superb; with 2009 P.S.E. Graded certificate (XF-Sup 95, SMQ $400). Scott No. C3  $140. $0 (Image)

Airmail, 1918, 24¢ carmine rose & blue, top margin plate block of 12 with two plate numbers and "TOP" imprints, o.g., top left stamp lightly hinged, others never hinged, strong colors, Fine. Scott No. C3  $1,610 for singles. $0 (Image)

Airmail, 1918, 24¢ carmine rose & blue, duplex cancel, precision centering amid large margins, rich vibrant colors, Extremely Fine to Superb; with 2012 P.S.A.G. Graded certificate (95, SSV $220). Scott No. C3  $35. $0 (Image)