Typed Document Signed by Herrmann Albert (1 results)

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    • Published by Mähr-Ostrau, Germany: ND.

      • Signed
      • Manuscript

      Seller: Wittenborn Art Books, San Francisco, U.S.A.Wittenborn Art Books

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      Condition: Used - Good

      US$ 250.00

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      Condition: Good. Typed document, signed. From Albert Herrmann, Mähr-Ostrau [Germany]. Undated. Patent for new propeller design to increase flight speed. Signed in pencil. Pencil notations, apparently by Caproni, expressing interest. 8-1/4 x 12-5/8 inches. Perforated twice for insertion into binder. Folded once horizontally and o…