Title: United States supplementary mail
First published: 2009
Description: "This volume gathers the information published in The United States Specialist and adds previously unknown information on the beginnings and early operation of supplementary mail service in New York and ten other cities, as well as describing the origin of the concept of supplementary mail" -- Container.
Subjects: Postal service, History, Postage stamps
LC classification: HE6371 .P57 2009