Browse TopicGovernment and PoliticsHistoric PreservationSubjectArizonaHistoryDescriptionOfficial postal envelope cover dedicated to the Western Postal History Museum of the Arizona Pioneers’ Historical Society. The envelope was a part of the A. P. S. Spring Meeting & “ARPEX” Stamp Exhibition on April 18 –20, 1969 in Tucson, Arizona. The cover has green text and photography with a green hue. The inserted photo is described as “Military Camel Mail Crossing Arizona” from 1859.Date Original1969Date Range1960s (1960-1969)TypeStill ImageOriginal FormatPostal cards|EnvelopesLanguageEnglishContributing InstitutionArizona Capitol MuseumCollectionArizona and the United States Postal ServiceRights StatementThis work has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.