Spy Techniques of the Revolutionary War: Culper Code Book

The Culper Code Book · George Washington's Mount Vernon

George Washington's Secret Six by Brian Kilmeade, Don Yaeger: 9781595231109

Spycraft: The Cardan Grille System « TURN to a historian

The Culper Code Book · George Washington's Mount Vernon

James Rivington: King's Printer and Patriot Spy? - Journal of the American Revolution

Spy Techniques of the Revolutionary War · George Washington's Mount Vernon

Historical background Information Though the codes used by the Culper spies were elementary by today's standards, they apparently were good enough for. - ppt download

revolutionary war espionage « TURN to a historian

The Culper Ring: American's First Spies

The Culper Spy Ring: The American Revolution's Great Secret - Warfare History Network

347 if by Land, 588 if by Sea: The Story of the Culper Spy Ring – Cryptography

Culper Ring, Sons Of Liberty Wiki

Culper Spies TBR News Media

INTEL - Culper Spy Ring