Jusqu-a Airmail Markings- A Study Ian Mcqueen __exclusive__ -

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: Some later editions or copies found at retailers like AbeBooks or specialized philatelic sites like Phila Art may offer Volumes I and II bound together. Core Content and Research Jusqu-a Airmail Markings- A Study Ian McQueen

originally published in 1993, is considered the definitive ground-breaking research on the subject. Authenticity check: : Some later editions or copies

The postal authorities used handstamps or manuscript notations—often bearing the word "Jusqu'à" followed by a city name—to inform handlers exactly where the expensive airmail service ended and the standard surface service began. This ensured proper routing and prevented the incorrect charging of postal rates. Jusqu-a Airmail Markings- A Study Ian McQueen