This file is a work of a sailor or employee of the
U.S. Navy, taken or made as part of that person's official duties. As a
work of the
U.S. federal government, it is in the public domain in the United States.
Image taken from http://www.history.navy.mil/ac/exploration/wilkes/wilkes16.html - due to its age, and the fact that it's a product of the US government, it's in the public domain.
File history
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