Text on verso: "To send your Personal correspondence via Air Mail is a mark of social courtesy. / Among women, an Air Mail letter is the Socially Correct letter. / The average letter via Air Mail requires but five cents postage. Stamps of any denomination may be used. / Envelopes of any style are suitable for sending Air Mail--simply mark them 'Via Air Mail' and deposit in any mail box. / Air Mail adds distinction."Creation Datecirca 1920s-1930sSubjectAir mail serviceExtent1 advertisement ; 17 x 10 cmLanguageEnglishOriginal FormatadvertisementsBibliographic CitationThe Claud V. O'Callaghan Early Airmail Collection/The Museum of FlightRightsNo copyright - United States
Air Mail is Socially Correct [advertisement], [1987-09-22-B_text_027]. Museum of Flight Digital Collections, accessed 20/05/2026, https://digitalcollections.museumofflight.org/nodes/view/29155