5c Deep Blue, Buffalo Balloon (CL1). Mint N.H., large to huge margins, deep rich color
The Buffalo Balloon stamp, designed by John F. B. Lillard and engraved by John H. Snively, was printed by Wheeler Brothers Printers in Nashville, Tennessee. Only 300 were printed in tete-beche arrangement from a single die. The stamps were intended for use on a balloon flight from Nashville to Gallatin, Tennessee, which took place on June 18, 1877. Of the 300 that were printed, only 23 were used.
With 2000 P.F. certificate