constructed and engraved by W. Williams ; Map of Oceanica, exhibiting its various divisions, island groups &c.
Relief shown by hachures and spot heights.
"Entered according to Act of Congress in the year 1860 by S. Augustus Mitchell in the clerks office of the district court of the U.S. for the eastern district of Pennsylvania."
In lower right hand corner "83."
Map of Africa includes inset of "Island of St. Helena."