By A Mystery Man Writer
During the American Revolution, invisible ink was an important method of communication for spies on both sides.
From Invisible Ink to Cryptography, How the American Revolution
The New Room Renewed — Refurbishing and Reinterpreting the New Room
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The New Room Renewed — Architectural Restoration of the New Room
George Washington and Gilbert Stuart
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International Spy Museum - Today in #SpyHistory: Dr. James Jay
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How to Make Invisible Ink · George Washington's Mount Vernon
George Washington, Spymaster: How the Americans Outspied the