VIEW THE CODEBOOK HERE here.
Access the four pages and transcription of Benjamin Tallmadge's numerical dictionary at the official website of George Washington's Mount Vernon.
Access a letter (July 25, 1779) written by Benjamin Tallmadge to George Washington about a "Scheme for carrying on the Correspondence in future with C——" (Culper, numerical dictionary) at Founders Online.
Library Administration: 631.632.7100
Except where otherwise noted, this work by SBU Libraries is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.