Private signals

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GLC#
GLC00722.06-View header record
Type
Documents
Date
1857
Title
Private signals
Place Written
s.l.
Pagination
3 p. : Height: 25 cm, Width: 20 cm
Primary time period
National Expansion and Reform, 1815-1860
Sub-Era
Age of Jackson

Explains a system of secret signals to be used in communication between ships. Orders captains to memorize the formula for the protocol and then destroy the document.

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