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Telegraph code as embodied in Circular Letter No. 439 addressed to post office inspectors under date of June 12, 1924.

Bibliographic Details
Corporate Author: United States. Post Office Department
Format: Government Document eBook
Language:English
Published: Washington : U.S. GPO, 1924.
Subjects:
United States. > Post Office Department.
Ciphers.
Postal service > Employees.
Telegraph.
Electronic books.
Online Access:Connect to the full text of this electronic document
Description
Item Description:[on telegraph codes and procedures for post office inspectors].
Includes index.
Record is based on bibliographic data in ProQuest U.S. Executive Branch Documents, 1910-1932. Reuse except for individual research requires license from ProQuest, LLC.
Electronic resource.
Physical Description:1 online resource (iv+26 pages)
Format:System requirements: PDF reader software.