Flight-flown first flight air mail envelope, 9.5 x 4.25, stamped bearing a stamped cachet honoring the August 1, 1934, World Record first air mail carried on the Pan-Am “Clipper” sea plane, and bearing a stamped cachet noting this envelope was on the plane. Signed vertically on the left edge in fountain pen, “C. A. Lindbergh 1935.” In fine condition. Pre-certified PSA/DNA and RRAuction COA.
