Discusses the difference between codes and ciphers, examines common codes and ciphers that have been used during wars, and explains how to create simple ciphers.
| hid | mid | miid | nid | wid | location_code | location | barcode | callnum | dewey | created | updated |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1672379 | 5287342 | 2245 | 750404 | 135043 | WCES | 509 | 027025686 | 652 GIL | 652 | 1582575937 | 1709307855 |