Elmo Zumwalt Signed Index Card – Youngest U.S. 4-Star Admiral COA

His autograph is highly prized among collectors of military history. Elmo Zumwalt - Youngest 4-Star Admiral Signed Index Card - COA. • Autograph : This 3x5 index card features a clear, bold signature byAdmiral Elmo Zumwalt, making it a rare and valuable collectible.

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