Including: postage, air post, plate blocks, first day covers, postal stationery, essays, proofs, computer vended postage, 19th century carriers & locals, booklets, revenue stamps, telegraph stamps, Confederate States, Canal Zone, Danish West Indies, Guam, Hawaii, United Nations and United States administration: Cuba, Puerto Rico, Philippines, Ryukyu Islands.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.