A chart of the Gulf Stream / nautical chart

Appears in the Transactions of the American Philosophical Society, 1786.
Includes inset of North Atlantic and text in left margin "Remarks upon the navigation from Newfoundland to New-York, in order to avoid the Gulph Stream on one hand, and on the other the shoals that lie to the southward of Nantucket and of St. George's Banks," by B. Franklin.
Mounted on cloth.
Upper right margin: plate 5. Lower margin: facing page 315.
Available also through the Library of Congress Web site as a raster image.
Copy imperfect: Mended triangular loss in upper margin.