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Collection Reference Number GLC00722.05
From Archive Folder William McBlair collection 
Title General signals
Date 1857
Document Type Military document
Content Description Explains a secret numeric code to be used when transmitting signals between ships.
Subjects Maritime  Navy  Military History  Africa  African American History  African Squadron  Codes and Signals  
Theme African Americans; Naval & Maritime; Slavery & Abolition
Sub-collection The Gilder Lehrman Collection, 1493-1859
Copyright The Gilder Lehrman Institute of American History
Module Settlement, Commerce, Revolution and Reform: 1493-1859