Vintage October 1957 "Manual of Surface Observations (WBAN)" Circular N, Seventh Edition, issued jointly by the U.S. Department of Commerce Weather Bureau, U.S. Air Force Air Weather Service, and U.S. Navy Naval Weather Service.

This technical manual was used as a standardized guide for recording and reporting surface weather observations across meteorological stations. The publication contains official procedures and instructions for observing and documenting weather conditions, making it an interesting piece of meteorological, aviation, military, and government history.

Features:
• Manual of Surface Observations (WBAN)
• Circular N, Seventh Edition
• Revised to include Changes 1 through 4
• Dated October 1957
• Issued by the U.S. Weather Bureau, Air Weather Service, and Naval Weather Service
• Softcover/manual format with punched holes for binder storage
• Vintage government publication

A great addition for collectors of weather-related materials, meteorology enthusiasts, aviation historians, military memorabilia collectors, or those interested in mid-century government publications.

Please review all photos carefully for condition details, as they are part of the description.