April Militaria & Autographs Auction
Lot 521:
Ten covers signed by members of Operation Paperclip and other scientist including Erich Ball (1901-1990), Hans Fichtner (1917-2012), Herbert Fuhrmann (1912-2005), Walter Haeussermann (1914-2010), Karl Heimburg (1910-1997), Gustav Kroll (1914-2005), Werner Kuers (1907-1983), Arthur Rudolph (1906-1996), Karl Sendler (1914-2001), and Werner Sieber (1912-1995).
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