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The Long ViewJohn Thurloe, Cromwell's postmaster, and the interception of mailThe interception of mail

Ciphered letters from the British Library

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Cipher relating to Bernard Desjean, Baron de Pointis, the Marquis de Seignelay and the siege of Londonderry, June 1689

Letter book of John Wallis, ciphered letters with deciphering and keys. British Library.

  • Cipher used by Sir George Downing between 1657-1659
  • Letter from King Charles II to Alexander Leslie, Lord Leven
  • Intercepted letter from King Charles II to Alexander Leslie, Lord Leven.
  • Cipher relating to Bernard Desjean, Baron de Pointis, the Marquis de Seignelay and the siege of Londonderry, June 1689
  • Cipher relating to Bernard Desjean, Baron de Pointis, the Marquis de Seignelay and the siege of Londonderry, June 1689

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