Commemorative cover with a cachet and inlaid medallion honoring the 25th anniversary of the first ascent of Mount Everest, 8 x 4.5, signed in ballpoint by Edmund Hillary and Tenzing Norgay. Housed in its original presentation folder. In fine condition, with some haloing to Tenzing's signature. Accompanied by its uncommon white paper sleeve, which features some wear and stains.
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