RARE Boow Dept.
XxbH
827 -P22M
BROADSIDES.~— U-S,
Parker, John R Marine telegraph ... The marine telegraphic flags gre 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. .52xh0O.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."
MB