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Snapshot of core data from en.wikipedia.org 2021-06
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lgmanualofsignals.pdf
lgmanualofsignals.pdf
http://www.civilwarsignals.org/pdf/lgmanualofsignals.pdf
Albert J. Myer
Signal Corps in the American Civil War
Link from a Wikipage to an external page
lgmanualofsignals.pdf
http://www.civilwarsignals.org/pdf/lgmanualofsignals.pdf