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Ian McQueen’s Jusqu’à Airmail Markings: A Study (1993, 1995 Supplement) provides a comprehensive, foundational analysis of non-standardized postal markings indicating that airmail, due to service limitations, was completed by surface transport. Published by W.A. Page, this work, which includes an extensive 1995 supplement, transformed the study of these "as far as" markings into a key area of aerophilately. For more details, visit Academia.edu
By continuing to study and analyze jusqu'a airmail markings, researchers can gain a deeper understanding of the complex and intriguing world of philately and airmail history. Jusqu-a Airmail Markings- A Study Ian McQueen
In conclusion, Jusqu’à Airmail Markings is a definitive work of forensic postal history. Ian McQueen achieves something rare: he takes the most ephemeral of postal ephemera—a small rubber-stamped instruction—and reveals it as a primary source for economic history, technological diplomacy, and the sheer human effort to make the world smaller. After reading McQueen, one can never look at a vintage airmail envelope the same way again. The Jusqu’à marking is no longer a minor curiosity; it is a silent witness to an era when every mile flown was an achievement, and every “as far as” was a promise hedged against the unknown. For the serious aerophilatelist or the student of interwar infrastructure, McQueen’s study remains the essential, unrivalled guide. Ian McQueen’s Jusqu’à Airmail Markings: A Study (1993,
McQueen divided these markings into specific types, such as "mute" parallel bars, crosses, and explicit text-based stamps like "Jusqu’à Londres" (As far as London). Postal agreements and air mail route timetables from