On a pair de cufflinks that Ian Fleming (James Bond) owns, he discovered a mysterious code similar to NSA.
Fleming wore a cultured pearl-set to the 1962 Dr No post-film screening party.
These items are due for auction, but they contain a code 007-esque made of several letters.

Cufflinks inscribed with letters “WUS”, “SIL”, “UDH” and “NUF” – an unsolved code

These enigmatic pearl cufflinks were once owned by Ian Fleming, James Bond’s author. They will be auctioned at Mallams in Oxford on November 17, 2017.
Cufflinks’ backs have inscribed ‘WUS,’ SIL, UDH’, and ‘NUF’. This is believed to be a secret message that remains undiscovered.
Mallams auctioneers, Oxford will sell the mysterious cufflinks on November 17th
The listing states: “Surely, a perfect code breaking mission for any aspiring spy out there.

Ian Fleming spent time in World War II in Naval Intelligence Division. He used this experience to create James Bond, the fictional character in the 1952 novel Casino Royale.

Bond author Ian Fleming donned the cufflinks at the 1962 ‘Dr No’ post-film screening party
His service as an intelligence officer with the Naval Intelligence Division in World War II, and his experience as a journalist influenced much of Fleming’s writing about James Bond.
In 1952’s novel “Casino Royale”, Bond was introduced. It so captured public imagination, Fleming wrote eleven more Bond novels and two short stories that were later adapted for radio, TV, and film.
‘These circular cufflinks, which come to Mallams by family descent, are sure to prove popular with James Bond enthusiasts and carry an estimate of £800-£1200.’