Flight-flown souvenir cover, flown on board the Bell X-2 rocket in September of 1956, signed by pilot Iven Kincheloe. In fine condition. As there are no known Bell X-1 flown covers these are the earliest X plane flown covers known to exist. Pre-certified Scott Cornish and RRAuction COA.
This item is Pre-Certified by STEVE ZARELLI
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