24c Carmine Rose & Blue, 1918 Air Post (C3). Mint N.H. with plate no. 8492 at top, vignette shifted sharply upwards with blue ink of the wing well into label of frame and slightly into the "G" of Postage, Extremely Fine, a stamp of great visual appeal, with 2006 P.S.E. certificate describing this as "high flying plane variety" (XF 90 Jumbo; SMQ for normal $250.00 as 90, $640.00 as 95)

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