VERY FINE 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 1998 P.F. certificate.
VERY FINE APPEARING EXAMPLE OF THE RARE BUFFALO BALLOON AIR POST ISSUE.
The Buffalo Balloon stamp, designed by John F. B. Lillard and engraved by John H. Snively, was printed by Wheeler Brothers Printers in Nashville, Tenn., The stamps were intended for use on a balloon flight from Nashville to Gallatin Tenn., which took place on June 18, 1877. Of the 300 that were printed, only 23 were used.