An Illustrated catalog of Philadelphia postal markings found on stampless covers, 1728-1863
By: edited by Robert J. Stets.
Contributors: Stets, Robert J.
Publisher: Associated Stamp Clubs of Southeastern Penna. & Delaware
Published: 1983
Place of publication: [Philadelphia]
Language: eng
Number of pages: 32
Subjects: Postmarks -- Pennsylvania -- Philadelphia -- Catalogs.
Notes: Includes bibliographical references.