This detailed chart covers the entire Pacific Ocean and is filled with navigational information including currents, trade winds, and water temperature. Several trade routes are shown crossing the ocean with a color-coded key at bottom right. A thorough explanation of various signs used on the chart are included at bottom left.
References: Phillips (Atlases) #229.
Condition: A
On a sturdy clean sheet with a short centerfold separation confined to the top blank margin that has been closed on verso with paper tape.