Instructions for daily transmission of airplane weather observations
Publisher: U.S. Dept. of Agriculture, Weather Bureau
Published: 1934
Place of publication: Washington, D.C
Language: eng
Number of pages: 15
Subjects: United States; Cipher and telegraph codes; Meteorology; Handbooks, manuals; United States. Weather Bureau; Weather telegraphy
Notes: At head of title: Circular.

Title from caption.

"December 1, 1934."