United States official postal guide
Publisher: U.S. Govt. Print. Off. [etc.]
Published: 1874
Place of publication: Washington [etc.]
Language: eng
Number of pages: 81
Subjects: Postal service; Guides
Notes: Issues for Oct. 1874-July 1879 called no. 1-20; Sept. 1879-June 1908 called ser. 2, v. 1-30; July 1908-June 1921 called ser. 3, v. 1-13; July 1921-June 1937 called ser. 4, v. 1-16; July 1937-Apr. 1945 called ser. 5, v. 1- 4; July 1945-Oct. 1954 called ser. 6, v. 1-5, no. 6. Pt. 2 of the large July issue, 1937-53 called ser. 1, v. 1-    ser. 2, v. 1, 2d ed.

Beginning in 1880 a July number (the January number 1880-1908) is the large complete guide and directory with the other numbers serving as supplements.  Beginning in 1937, this July number is issued in 2 pts.: pt. 1. Domestic postal service, including international money order business (issued biennially); Pt. 2. International service (called 1937-50 International postal service) (issued annually (irregular)).

Continued in part by: Postal manual, and: Directory of post offices, and: Directory of international mail.