More frequent were machines built with the double-lightning-bolt SS Siegrune, usually above the No. 3 or 5 key. With sieg meaning “victory,” the runes became ubiquitous in Nazi Germany as a shorthand rallying cry for “victory, victory!” In their more sinister application, the SS runes became the logo for the Schutzstaffel—the notorious paramilitary units most responsible for the wanton slaughter of 6 million Jews across Europe.