First, force the British to endure food shortages—then make them eat exploding candy bars. That was at least part of the Nazi plan to destroy Britain during World War II, according to drawings of German weapons recently seen for the first time, the Smithsonian reports. Among the drawings: a bomb hidden in a motor-oil can, a 21-day timer that used a rotating disc, and a timer in a test tube of peas that went off when water made two contacts come together, per the BBC. Then there’s the chocolate bar (viewable in this tweet) which was designed to detonate when the chocolate was broken. The Nazis hoped to assassinate Winston Churchill with such a bar by placing it amid items going into the War Cabinet’s dining room, according to a letter discovered in 2009, the Telegraph reported three years ago.
That 1943 letter was written by Lord Rothschild to artist Laurence Fish, who also made the drawings of various Nazi booby-traps. Rothschild—”a larger-than-life character, a scientist and self-appointed expert on many things,” the BBC says—was also one third of MI5’s counter-espionage unit, along with his secretary (and future wife) and police inspector Donald Fish. Rothschild wanted someone to draw the devices, and Fish recommended his son, Laurence, a draughtsman and low-ranked member of the Royal Air Force, the Gloucestershire Echo reports. Long thought lost, the drawings turned up in the home of Rothschild’s daughter a few weeks ago. Rothschild and Laurence were “an amazing combination,” says Laurence’s widow, Jean. “Rothschild had very great respect for Laurence—I don’t know why, but it worked well.”