"Series B." The trade wind charts were released as series B a part of Maury's "Wind and current charts", series A-F.  Two sheets were produced, one for the Atlantic and the other for the Indian Ocean.  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. Copy imperfect: Torn and repaired along fold line and edges. Includes notes. Available also through the Library of Congress Web site as a raster image.
Maury, Matthew Fontaine; Dehaven, E. J.; Morris, Charles; United States. Bureau Of Ordnance And Hydrography; United States. Hydrographic Office; United States Naval Observatory
1851
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