FDC, 6.5 x 3.75, with a cachet honoring Prisoners of War, signed in ink and ballpoint by Alan Shepard, Chuck Yeager, J. H. Doolittle and Benjamin Davis; and a U. S. Air Force commemorative cover, 6.5 x 3.75, signed in ink by Paul Tibbets, Curtis LeMay, Yeager and Doolittle. In fine condition. R&R COA.
