Postage stamps of the United States issued by the Post Office Department from July 1, 1847, to December 31, 1950.
Publisher: U.S. Govt. Print. Off.
Published: 1950
Place of publication: Washington
Language: eng
Number of pages: 195
Subjects: Postage stamps.
Notes: Compiled by the Division of Stamps and Philately, U.S. Post Office Dept.