The postal markings of the Canal Zone
By: by Lawson P. Entwistle.
Publisher: Canal Zone Study Group
Published: 1984
Place of publication: [Atlantic City, N.J.]
Language: eng
Subjects: Postmarks -- Canal Zone.; Postal service -- Canal Zone.
Other titles: Handbook (Canal Zone Study Group (U.S.)). No. 5 (Supplement 1-2)
Notes: "Supplement [1]-no. 2 to Handbook no. 5."