6c-24c 1918-23 Air Post
(C1-C6). Mint N.H. except No. C3 lightly hinged (approaching "fast
plane" variety), fresh and Very Fine (Image)
6c Orange, 1918 Air Post
(C1). Mint N.H. top arrow and plate no. block of six, radiant color,
few minor perf separations at top, fresh and Very Fine
(Image)
24c Carmine Rose & Blue, 1918
Air Post (C3). Mint N.H., Jumbo margins, brilliant colors, Extremely
Fine Gem (Image) 
24c Carmine Rose & Blue, 1918
Air Post, Fast Plane (C3 var). Mint N.H., wing of plane shifted
dramatically and almost breaks outer frame design, Very Fine (Image) 
24c Carmine Rose & Blue, 1918
Air Post, Fast Plane (C3 var). Lightly hinged, plane shifted
dramatically to the left, fresh and Fine
(Image)
24c Carmine Rose & Blue, 1918
Air Post (C3). Mint N.H. top arrow, double plate no. and double "Top"
block of twelve, deep rich colors, top left stamp wide vertical natural gum
skip, Very Fine (Image)
24c Carmine Rose & Blue, 1918
Air Post (C3). Mint N.H. top double plate no., arrow and double "Top"
block of twelve, bright colors, usual faint natural gum skips and bends,
Fine (Image)
8c Dark Green, 1923 Air Post
(C4). Mint N.H. bottom left corner sheet margin block of four with
siderographer's initials, Very Fine, Scott Retail as Mint N.H.
singles (Image)
8c-24c 1923 Air Post
(C4-C6). Blocks of four, bottom pairs of 8c and 16c are Mint N.H.,
others lightly hinged, choice centering Very Fine-Extremely Fine, Scott
Retail as singles (Image) 
24c Carmine, 1923 Air Post
(C6). Mint N.H., brilliant color, Extremely Fine
(Image)
10c-20c Map, Large Die Proofs
on India (C7P1-C9P1). Complete set, each die sunk on 6 x 8 in. card
with typewritten Jan. 23, 1926 approval and signature of Postmaster General
Harry S. New, blue control numbers 1369974, 5783 and 31554 on back, very
freshEXTREMELY FINE SET OF 1926 MAP AIR POST ISSUE LARGE DIE PROOFS SIGNED BY THE POSTMASTER GENERAL.
Ex Franklin D. Roosevelt (Image)