@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
📸 1/3: M-209 cipher machine c. 1940s Designed by Boris Hagelin (1892–1983) Smith & Corona Typewriters, Inc. Syracuse, New York Courtesy of the National Cryptologic Museum (@NatCryptoMuseum) L2021.0910.001. This tweet was posted on March 28, 2022.