The 1931 international code of signals
Subtitle: Vol. II : For radio signaling ...
Edition: American ed. (Effective January 1, 1934).
Series: U. S. Hydrographic office -- Publication no. 88; H.O. pub -- no. 88
Publisher: U. S. Govt. print. off.
Published: 1933
Place of publication: Washington
Language: eng
Number of pages: 418
Subjects: Signals and signaling; Merchant marine; Signaling
Notes: "Sold by the Hydrographic office under authority of the Secretary of the Navy."