February 12, 2013
Illustration.
From the title page verso of Anglo-American Telegraphic Code to Cheapen Telegraphy and to Furnish a Complete Cypher (1891). Original from Harvard University. Digitized July 22, 2008.

Illustration.

From the title page verso of Anglo-American Telegraphic Code to Cheapen Telegraphy and to Furnish a Complete Cypher (1891). Original from Harvard University. Digitized July 22, 2008.

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