Picture of telegraph poles

Barnard, “Arbitrable Nathan,” and the 1895 Police Cipher

It was 1895, and the company of St. Louis printing manufacturer George D. Barnard was focused on telegraph wires, specifically how individuals might tap them to “listen in” on Morse-code messages between police U.S. police departments. Continue reading Barnard, “Arbitrable Nathan,” and the 1895 Police Cipher

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