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ciphers

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Letter, James Madison to Thomas Jefferson, partially written in cipher with translation by Jefferson, 23 May 1789

Letter, James Madison to Thomas Jefferson, partially written in cipher...

Reproduction number: A64 (color slide; page 1) This letter of 23 May 1789 was written by James Madison (1751-1836), a member of the first Congress and later the fourth president of the United States, to Thomas ... More

Letter, James Madison to Thomas Jefferson, partially written in cipher with translation by Jefferson, 23 May 1789

Letter, James Madison to Thomas Jefferson, partially written in cipher...

Reproduction number: A64 (color slide; page 1) This letter of 23 May 1789 was written by James Madison (1751-1836), a member of the first Congress and later the fourth president of the United States, to Thomas ... More

Letter, James Madison to Thomas Jefferson, partially written in cipher with translation by Jefferson, 23 May 1789

Letter, James Madison to Thomas Jefferson, partially written in cipher...

Reproduction number: A64 (color slide; page 1) This letter of 23 May 1789 was written by James Madison (1751-1836), a member of the first Congress and later the fourth president of the United States, to Thomas ... More

Letter, James Madison to Thomas Jefferson, partially written in cipher with translation by Jefferson, 23 May 1789

Letter, James Madison to Thomas Jefferson, partially written in cipher...

Reproduction number: A64 (color slide; page 1) This letter of 23 May 1789 was written by James Madison (1751-1836), a member of the first Congress and later the fourth president of the United States, to Thomas ... More

Greenhow cipher WDL

Greenhow cipher WDL

Cipher made by Rose O'Neal Greenhow, spy in Washington, D.C., working for the Confederacy during the American Civil War. Image from World Digital Library, held in the National Archives: https://arcweb.archives... More