Library of Congress
Congressman Ross Collins of Mississippi successfully proposed the $1.5 million purchase of Otto Vollbehr's collection of incunabula
Washington D.C., U.S.
Collections of Hebraica and Chinese and Japanese works were also acquired. Congress even took the initiative to acquire materials for the library in one occasion, when in 1929 Congressman Ross Collins of Mississippi successfully proposed the $1.5 million purchase of Otto Vollbehr's collection of incunabula, including one of three remaining perfect vellum copies of the Gutenberg Bible.