The following web-based resources provide some level of information / insight helpful in conducting research into Swiss philatelic matters. >> US-based Resources American Philatelic Society American Philatelic Research Library >> Swiss-based Resources Arbeitsgemeinschaft Schweiz Swiss Postal Stationery Collectors Club Union of Swiss Philatelic Societies >> UK-based Resources Helvetia Philatelic Society (Great Britain) Museum of Philatelic History (London) >> Postal Authorities Liechtenstein Swiss Post United Nations Philatelists, Inc. >> Miscellaneous Switzerland as seen in OECD Data PhilaSearch