Squirrel monkey who, on May 28, 1959, along with rhesus monkey Miss Able, spent 16 minutes in space aboard the Jupiter AM-18 flight. Off-white mailing envelope, 4.5 x 10.25, signed with an original ink paw print signature by Miss Baker. In fine condition, with some light toning to envelope. Accompanied by a paperstock photo of Miss Baker featuring a printed paw print, as well as a child's letter inquiring about the monkey. From the collection of aerospace memorabilia specialist Ken Havekotte.
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