Pilot chart of the South Atlantic nautical chart

Shows prevailing wind direction by month.
"No. 1. Series C."
The pilot charts were released as series C a part of Maury's "Wind and current charts", series A-F. These charts were designed for sailing ships and recorded wind direction observations made by mariners on previous voyages. For complete discussion, see "The wind and current chart series produced by Matthew Fontaine Maury," by Marc I. Pinsel, in Navigation : Journal of the Institute of Navigation, v. 28, no. 2 (Summer, 1981), p. 123-137.
In upper left margin: 12.
Includes diagrams and notes in map area with signature of M.F. Maury.
Copy imperfect: Discoloration throughout, mounted on cloth backing.
Available also through the Library of Congress Web site as a raster image.