24c Carmine Rose & Blue, 1918 Air Post, Fast Plane Variety (C3 var). Lightly hinged, forward shift showing the Fast Plane variety, with top wing extending nearly to the end of the Carmine frame, intense colors, Fine, with 2018 P.S.E. certificate stating "Fast Plane"
24c Carmine Rose & Blue, 1918 Air Post (C3). Top arrow, double plate nos. 8493/8492 and two "TOP" block of twelve, neat "Holton Kans." registry oval cancels, rich colors, Fine-Very Fine, scarce in used condition, unpriced as used in Scott
16c Dark Blue, 1923 Air Post (C5). Mint N.H. top plate no. 14831 block of six with wide selvage, deep rich color, Very Fine and choice, with 1991 P.F. certificate, desirable from the top position, we have offered only four other Mint N.H. top plate blocks since 2009
10c Lindbergh, Booklet Pane (C10a). Complete set of 12 booklet panes, each of the identifiable positions included, Mint N.H. except for Position L and perhaps one other, Position D with part of plate no. 19427, Position O originates from only one position of the 60-subject plate, Fine-Very Fine, scarce complete group