24c Carmine Rose & Blue, 1918 Air Post, Grounded Plane Variety (C3 var). Original gum, lightly hinged, brilliant colors, vignette shifted strongly to bottom with wheels well into "Cents", wide margins

VERY FINE AND CHOICE EXAMPLE OF THE RARE 1918 24-CENT FIRST AIR POST ISSUE GROUNDED PLANE VARIETY.

The true Grounded Plane stamps, in which the wheels of the plane break thru the top of "Cents", come from portions of three sheets. The discovery sheet was owned and broken up by J. Klemann of Nassau Stamp Company. A second sheet was discovered in 1946 and sold in the Thomas A. Matthews sale (H.R. Harmer, Nov. 4, 1964), where it was purchased by Georges A. Medawar, publisher of Sanabria Airmail Catalogue. In Linn's Stamp News of April 21, 1986, specialist Joseph R. Kirker Jr. published his research revealing a third source of this variety.

With 2010 P.F. certificate

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