Keywords: Greenglass bomb diagram.png Exhibit 8 at the trial of Julius and Ethel Rosenberg a drawing of an implosion-design nuclear weapon by David Greenglass created a few days before the trial began in 1951 The drawing was the first time the implosion design was allowed to be made public Despite being declassified by the Atomic Energy Commission it was immediately impounded as a threat to national security by the Rosenbergs' lawer and was only released in 1966 after an investigation into the Rosenberg trial evidence where it was criticized by experts as very crude and not of any likely intelligence value This scan is from a 1966 New York Times which reprinted it Since it was done by Greenglass for the purposes of the Rosenberg case and is a piece of federal evidence it is most likely in the public domain Nobody has ever put a copyright notice on it in any case to my knowledge PD-USGov Nuclear weapon schemas Round diagrams New York Times 1950s diagrams Julius and Ethel Rosenberg |