Instructions to publishers in the preparation of second-class matter for mailing and dispatch
Publisher: U.S. Govt. Print. Off.
Published: 1951
Place of publication: Washington, D.C
Language: eng
Number of pages: 11
Subjects: Postal service; Second-class matter
Notes: At head of title: Form 5296 (rev. March 1951) Post Office Department.

"March 1951"