Image Information
| Type | other |
| Title | EDMOND JOHNSON'S PLAYFAIR CIPHERS |
| Date | 1/21/2024 |
| Description | Image from E-Sylum, 1/21/2024, article #6, original article at https://nnp.wustl.edu/library/periodical/635267. |
Related Content
| Image Collection | E-Sylum Image Archive 2024 |
| Periodical | EDMOND JOHNSON'S PLAYFAIR CIPHERS |