German captain and Arctic explorer (1862–1930). Three postcards depicting Commodore Ruser, the SS Imperator on her maiden voyage, and the interior of the SS Vaterland, 3.5 x 5.5 and 5.5. x 3.5, each signed on the reverse by Ruser. All are postmarked between 1913 and 1914. Light scattered creases, soiling, and edgewear, otherwise overall fine condition. Pre-certified PSA/DNA.
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