Waterway railway post offices of the United States
By: by Charles L. Towle ; with R.P.O. route information by John L. Kay
Contributors: Kay, John L.
Publisher: Mobile Post Office Society
Published: 1987
Place of publication: Bedford Park, Illinois]
Language: eng
Number of pages: 32
Subjects: Postal service; Collectors and collecting; Postmarks; Collectors' marks; Mobile Post Office Society
Notes: Includes brief overview of the Mobile Post Office Society.

Focuses on collecting waterway transit postmarks.