A treatise upon the telegraphic science :
with some remarks upon the utility of telegraphs, and a comparaitve view of the advantages of the numerical system over the l-e-t-t-e-r-i-n-g plan, as adapted to the semaphoric telegraph /
by John R. Parker.

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Main Author
Parker, John R. (John Rowe), 1777-1844.
Related Names
Pendleton's Lithography
Dutton and Wentworth
Language(s)
English
Published
Boston : Dutton and Wentworth, 1835.
Subjects
Merchant marine > Signaling
Signals and signaling
Wrappers (Binding)
Relief prints.
Lithographs.
Physical Description
16 p. ; 22 cm.
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