Bibliography
Postage Due Stamps
Postal Laws, Regulations, and Rates
Postmarks
Covers
Newspaper Archives
- Postage Due: The United States Large Numeral Postage Due Stamps 1879-1894 by George B. Arfken [buy online]
- Postage Due: The Unites States Postage Due Essays, Proofs and Specimens 1879-1986 by Harry K. Charles, Jr. [buy from CCC]
Postal Laws, Regulations, and Rates
- The Digitized US Postal Bulletins and PL&Rs, 1880-2013
- US International Postal Rates, 1872-1996 by Anthony S. Wawrukiewicz and Henry W. Beecher [buy online]
- Convention of Paris, June, 1878, as amended (pursuant to Article 19) by the additional act of Lisbon, March 21, 1885
- A History of Mail Classification and Its Underlying Policies and Purposes
- General Delivery by George McGowan [read online]
- Currency Conversion: American Almanac and Treasury of Facts, Statistical, Financial, and Political for 1878-1889 by The American News Company [read online]
Postmarks
- Auxiliary Markings Club: Held for Postage
- Cancellations and Killers of the Banknote Era by James M. Cole [read online]
Covers
- Earliest Recorded Uses
- The John Irwin Collection [view here]
- Postal Relations with New Zealand and Australia by George B. Arfken [read online]
Newspaper Archives
- Chronicling America (Free)
- Genealogy Bank (Subscription)