![Abecedarius / Four-square cipher Abecedarius / Four-square cipher](https://www.pdfsearch.io/img/6f5aec25249eb750b90c4e4cb3a74c55.jpg) Date: 2012-06-19 15:44:13Abecedarius Four-square cipher | | Cable to Secretary of State Re: Villainy by Night, December 10, 1971Add to Reading ListSource URL: nixon.archives.govDownload Document from Source Website File Size: 748,00 KBShare Document on Facebook
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