RR Auction's special November sale—Decoding History: Kryptos, Enigma, and the Rosetta Stone—brings an unprecedented selection of codes, secrets, and cryptographic material to auction. The auction is led by the complete secrets of Kryptos—the famous encoded sculpture on the CIA grounds—from artist Jim Sanborn's private archive, highlighted by the coding method and the solution to the K4 passage. Other highlights include an archive of 19th-century British working papers decoding the Rosetta Stone, two Enigma machines, and a mathematical book signed by Alan Turing. RR Auction is a globally recognized and trusted auction house specializing in historical autographs and artifacts. Join us as we make history selling history in November 2025.
