Colton's map of the world on Mercator's projection
Printed map. "Entered according to Act of Congress in the year 1855 by J.H. Colton & Co. in the Clerks office of the District Court for the Southern District of New York." In upper margin, "No. 9" and "No. 10" respectively. Map on verso on page "no. 11" entitled, "Western Hemisphere" with text on neighbouring page under title, "General view of the world." Probably originally published in Colton's Atlas of the World (1855), or Colton's General Atlas (1857).