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Harold Johnson's NASA Patent Letters

Currency:USD Category:Memorabilia / Autographs - Space Start Price:50.00 USD Estimated At:100.00 - 200.00 USD
Harold Johnson's NASA Patent Letters
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Collection of NASA letters honoring crucial space-race inventions by Harold "Hal" Iver Johnson. Includes a list of inventions hand written by Hal Johnson. Provenance: From the estate of NASA engineer Harold I. Johnson.