Components of a U.S. B83 thermonuclear weapon. For color (but lower-resolution) version, see <a href="//commons.wikimedia.org/wiki/File:B-83_nuclear_weapon.jpg" title="File:B-83 nuclear weapon.jpg">File:B-83 nuclear weapon.jpg</a>.
Immediate source: Chuck Hansen, <i>The Swords of Armageddon: U.S. Nuclear Weapons Development Since 1945</i> (Sunnyvale, CA: Chukelea Publications, 1995)<a rel="nofollow" class="external autonumber" href="http://www.uscoldwar.com/">[1]</a>