POTD: German Enigma Machine jla/44 – 150 Quintillion Settings
Welcome to today’s Photo of the Day! Here we have a 1944 Heimsoeth & Rinke Enigma machine marked “18499/jla/44”, one of an estimated 250-350 surviving examples from approximately 37,000 manufactured for the Wehrmacht during WWII.
Arthur Scherbius designed the Enigma in 1918 as an electronic encryption tool using rotors and a plugboard to scramble text. The three-rotor Wehrmacht version had five rotor options creating 150 quintillion possible settings. Each keypress changed the code – “A” might equal “B” once, then “X” the next time.
Germans believed Enigma was unbreakable, but Polish mathematicians made breakthroughs before WWII, reconstructing their own machine without having a correct model. They shared this with British and French intelligence in 1939. Alan Turing and the Bletchley Park team developed “bombes” – machines calculating Enigma keys by running hundreds of possible settings simultaneously.
The Royal Navy’s 1941 capture of a complete Enigma with codebooks from a German vessel without the Kriegsmarine knowing was crucial. Breaking Enigma codes provided “ULTRA” intelligence that arguably saved millions of lives, helping plan D-Day landings and counter U-boat attacks. The operation remained classified until the mid-1970s.
This oak-cased machine features QWERTZ keyboard, lamp-board with green filter, eight patch cables on the plugboard, and aluminum cipher rotors marked “V/A13462”, “III/A4728”, and “II/A13530” with WaA inspection stamps. Wehrmacht used numbered rotors while Kriegsmarine used letters.
As Allies pressed toward Berlin, Germans destroyed most Enigma machines under orders. Of tens of thousands produced, fewer than 350 survive today.
Most of our POTDs utilize images from our friends at Rock Island Auction Company, the premier firearms auction in the United States. Take some time to browse their current auctions – who knows, maybe you’ll find a piece of history to take home!
“Important & Historic WWII German Three Rotor Enigma Machine.” Rock Island Auction, www.rockislandauction.com/detail/4096/1375/important-historic-wwii-german-three-rotor-enigma-machine. Accessed 4 Mar. 2026.
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