Americans throwing the Cargoes of the Tea Ships into the River, at Boston, artist unknown, 1789, Library of Congress.
Americans throwing the Cargoes of the Tea Ships into the River, at Boston, artist unknown, 1789, John Carter Brown Library Archive of Early American Images.
Taken from the book The History of North America by E. Newberry and published in 1789, this print illustrates the tipping point of the American Revolutionary movement: the Boston Tea Party. Colonists in both Indian and sailor's garb climb aboard one of the three tea ships in Boston Harbor (a bay, not a river, as the print states) to toss the cargo into the waves. It is unclear if the ship is the Dartmouth, Eleanor, or Beaver, but the details of the ship itself are less of interest than the clothing of the sailors in this mob.
We should always be careful in taking any one image at face value, but the engraver gives us another reason to doubt.
Boston is not well known for palm trees.