Pilot chart of the North Pacific nautical chart

Shows prevailing wind direction by month.
Sheet 1 is mistitled; it covers the northwestern Indian Ocean near Somalia and the Arabian Peninsula. This area is also covered on part of the Pilot chart of the North Indian Ocean.
"Series C. No. 1."
Sheets individually numbered, e.g.: Series C No. 1., Sheet no. 2. Series C; sheets also numbered in upper left margin, e.g.: 66, 67, 68, 70, 71.
The pilot charts were released as series C 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.
Includes diagrams and notes in map area with signature of M.F. Maury.
Copy imperfect: Torn and repaired along fold lines and edges. Discoloration throughout.
Available also through the Library of Congress Web site as a raster image.