FREEDM_150213_384
Existing comment: Cover from USS Portsmouth off Cape Verde, January 7, 1849

The U.S. and Great Britain prohibited the importation of slaves in 1807. Both nations established Africa Squadrons -- naval detachments to intercept slave trading ships off the West African coast. Slaves found on the captured vessels were freed, usually in Liberia. Mail to and from ships of the Africa Squadron is quite scarce.
Modify description