Fájl:Einstein-Roosevelt-letter.pngAlbert Einstein Old Grove Rd. Nassau Point Peconic, Long Island August 2nd, 1939 F. D. Roosevelt, President of the United States, White House Washington
Fájl:Roosevelt-einstein-letter.pngaccept my sincere thanks. Very sincerely yours, Franklin D. Roosevelt Dr. Albert Einstein, Old Grove Road, Nassau Point, Peconic, Long Island, New York