We are currently working in the following books:
English:
- A bundle of letters from over the sea by Robinson, Louise B.
- A history of banks for savings in Great Britain and Ireland by Lewins, William
- An Abstract of the Proceedings of the Select Committee of the House of Commons, Appointed Session, 1849, to Inquire Into the Contract Packet Service by Peninsular and Oriental Steam Navigation Company
- Bartels catalogue and reference list of the United States stamped envelopes by Victor M. Berthold
- Canada its postage stamps and stationery by Howes, Clifton Armstrong
- Catalogue of books on philately in the Public Library of the City of Boston by Boston Public Library
- Chats on postage stamps by Melville, Frederick John
- List of Post Offices in Canada 1856 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1857 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1859 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1860 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1861 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1862 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1863 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1864 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1866 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1869 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1870 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1872 by Postmaster General - Canadian Post Office
- List of Post Offices in Canada 1874 by Postmaster General - Canadian Post Office
- List of Post-offices in the United States by United States Post Office Department
- Mail carrying railways underpaid by Committee on Railway Mail Pay
- Post exchange methods by Bunker, Paul D.
- Postal riders and raiders by Gantz, W. H.
- Ramsey & Carmick, contract. Letter from the Postmaster General by House of Representatives
- Report of the Naval committee to the House of representatives, August, 1850, in favor of the establishment of a line of mail steamships to the western coast of Africa, and thence via the Mediterranean to London; designed to promote the emigration of free by Stanton, Fred. P.
- Saint Vincent by Napier, Francis John Hamilton Scott
- Steam navigation, and its relation to the commerce of Canada and the United States by James Croil
- Ten years among the mail bags by Holbrook, James
- The Bristol Royal Mail by Tombs, Robert Charles
- The Isthmus of Suez question by Lesseps, Ferdinand Marie
- The development of rates of postage by Smith, A. D.
- The die varieties of the nesbitt series of US envelopes by Victor M. Berthold
- The early history of the colonial post-office by Woolley, Mary Emma
- The express companies of the United States by Benedict, Bertram
- The history of the post office from its establishment down to 1836 by Joyce, Herbert
- The history of the post office in British North America by Smith, William
- The philatelic index by Long, William A. R. Jex
- The postage stamp in war by Frederick John Melville
- The postage stamps, envelopes, wrappers and post cards of the North American colonies of Great Britain by The Philatelic Society
- The postal power of Congress by Rogers, Lindsay
- The proposed union of the telegraph and postal systems by Western Union Telegraph Company
- United States and Mexico. Commerce, trade, and postal facilities between the two countries by Carlos Butterfield
- Annuaire des postes pour 1843 by C. Viard
- Des paquebots transatlantiques by Jean Louis Le Hir
- Des postes by Charles Bernede
- Instructions sur les droits de messageries
- Les postes francaise by Alexis Belloc
- Lettre de Defrance à Bion, sur sa réponse aux objections contre l'établissement de la régie intéressée des postes et messageries by Defrance, Jean-Claude
- Mémoire sur l'importance de la conservation du régime actuel des postes by Duclos
- Mémoires pour les maîtres de postes
- Observations sur l'organisation des postes et messageries, présentées au Corps législatif by Joachim Pérez
- Observations, pour les sous-fermiers des messageries sur les articles préliminaires au bail des messageries
- Opinion par Defrance, sur les postes et messageries by Defrance, Jean-Claude
- Proces-Verbaux de L'Assemblee Generale de la section des postes by Braesch, Fritz
- Rapport fait par Defrance
- Réflexions importantes sur l'organisation des postes, et les propositions insidieuses d'une compagnie de finances by Gabriel, J.
- Réflexions pour les fermiers-généraux des messageries
- Un mot sur les postes by Dugas, Ch.