Jusqu-a Airmail Markings- A Study Ian Mcqueen Better • Confirmed & Hot

: These markings are "auxiliary markings." They help postal historians trace complex air routes and identify where air service ended. Ian McQueen’s Definitive Study

The definitive authority on this niche remains the seminal text, by Ian McQueen .

When a letter reached the end of the paid air sector, it had to be transferred to a surface route (rail, ship, or road) for the remainder of its transit. To prevent the letter from mistakenly being placed on a subsequent flight for which no fee had been paid, postal clerks applied a "Jusqu'à" marking. The Core Function Jusqu-a Airmail Markings- A Study Ian McQueen

In the specialized world of aerophilately, few sub-disciplines are as fascinating—or as complex—as the study of mail that transitioned between air and surface transport. , denoting "as far as" in French, represent a crucial, yet often overlooked, facet of postal history. The definitive study on this subject remains the groundbreaking work by Ian McQueen , a seminal text for collectors, postal historians, and researchers [Ian McQueen].

McQueen recorded the colour of each marking (often purple, but also red, black, blue or violet). He also noted whether the marking was a boxed handstamp, a straight line, a set of parallel bars, or a roller cancel. : These markings are "auxiliary markings

However, if the air service did not extend all the way to the destination, or if the sender only paid a partial airmail surcharge, the originating post office had to signal where the air transit should cease. Without a clear marking, an intermediary post office might mistakenly forward the item by air without receiving financial compensation, violating UPU conventions. Logistics of the Air-to-Surface Transfer

How did a postal clerk in London inform his counterpart in Egypt that the airmail service for this letter should stop at a specific transit point? They used . The clerk would handstamp or write "Jusqu’a Paris" or "Jusqu’a Marseille" on the cover, coupled with the precise airmail fee paid. To prevent the letter from mistakenly being placed

: Both volumes are highly sought after by aerophilatelists and are often sold together in spiral or comb-bound formats. Why It Matters for Collectors

McQueen organizes markings by three criteria:

McQueen provides an exhaustive listing of known "Jusqu’à" markings from across the globe, categorizing them by country, city, and specific physical characteristics. Historical Context: Beyond a mere list, the study explains the Universal Postal Union (UPU)