Eleven items consiting of signed photos, covers, and letters, each signed by a different scientist or inventor. Signers are: James A. Van Allen, Steve Wozniak, Robert Maurer, Stanley Pons, Weldon Ward, Donald Keck, Stanley Miller, Charles Sporck, Sylvia Fedorukr, P. C. Schultz, and Bob Hall. In fine condition, with vertical folds and clipped edges to letters. RRAuction COA.
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