Most of the collection, including its most valuable documents, were evacuated from Königsberg before the end of World War II and stored in a salt mine at Grasleben.
U.S. state | Georgia (U.S. state) | São Paulo (state) | Secretary of State | Washington (U.S. state) | state | United States Department of State | Moscow State University | United States Secretary of State | Franco-Prussian War | Ohio State University | Michigan State University | New York State Assembly | State Senator | New York State Senate | Rio de Janeiro (state) | Louisiana State Legislature | Iowa State University | Königsberg | Pennsylvania State University | Louisiana State University | Santa Catarina (state) | Florida State University | Paraná (state) | Vienna State Opera | Oregon State University | California State Assembly | Arizona State University | University at Buffalo, The State University of New York | Wayne State University |