https://catalog.archives.gov/id/3854702

Substitution Cipher Wheel

This item was produced or created in 1865. The creator compiled or maintained the parent series, Letters and Telegrams Received, between 1861–1869.

Record Group 111 | Records of the Office of the Chief Signal Officer | 1860 – 1985

Most Recent

War Department. Office of the Chief Signal Officer. (08/01/1866 - 09/18/1947)

Predecessor

War Department. Office of the Chief Signal Officer. (03/24/1863 - 06/30/1866)

Search Identifiers

siDiscovering the Civil War

siNational History Standard Era 5

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You might think I'm a good digger. Nope, the national archives served this one right up.