Sea-letter
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
A species of manifest, containing a description of the ship's cargo, with the port from which it comes and the port of destination. This is one of the documents necessary to be carried by all nentral vessels, in the merchant service, in time of war, as an evidence of their nationality.
4 Kent, Comm. 157. See Sleght v. Hartshorne, 2 Johns. (N. Y.) 540.