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Marine telegraph. Parker, John R
Marine telegraph ... The marine telegraphic flags @re so composed, as to enable vessels at sea to converse ... Boston, April, 1827.
CBoston] J.B.Clough, printer ,Custom-House Street. [€1827]
broadside. col.illus. 52x40.5em.
Sheet explaining the use of Elford's code of marine signals, with a list of the vessels registered at the Boston station, with their numbers.
Signed at bot- & tom,"N°561. J.R. Parker."
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