For those inspired to start a collection based on this theme, Ian McQueen’s work offers a ready-made exhibit framework:
The core of McQueen’s research revolves around reconstructing the flight paths and postal contracts of the era. Several classic routes dominate the study of jusqu'à covers: The Empire Routes (Great Britain to the East)
The work is typically found in two parts, reflecting the rapid growth of information following the initial release:
For the collector holding a faded envelope from 1935 with a violet handstamp reading "Jusqu’a Karachi," McQueen’s text is the key that unlocks the flight, the fare, and the forgotten story of that letter’s journey. It remains, quite simply, the final word on the subject. Jusqu-a Airmail Markings- A Study Ian McQueen
For the modern postal historian, a "jusqu-a" cover is not just a piece of paper; it is a glimpse into a time when mail traveled by air as far as it could—and then sailed the rest of the way.
Ian McQueen’s research highlighted that certain regions were hotspots for "jusqu-a" mail, primarily because of the reliance on French airline connections linking Europe to Africa and South America.
An airmail etiquette (blue "Par Avion" label) needed to be "canceled out" or qualified because the flight was unavailable for the remainder of the route. For those inspired to start a collection based
Before reliable trans-Atlantic flight, mail was often flown to New York ("Jusqu’à New York") and then sent by rail across the US or by ship to South America. War-Time Disruptions:
This article delves into the history of "Jusqu-a" markings, the importance of Ian McQueen's research, and why these items are highly prized by collectors worldwide. What are "Jusqu-a" Markings?
indicating it traveled by air to India and by sea the rest of the way. UPU Compliance: For the modern postal historian, a "jusqu-a" cover
As the Israel Philatelist noted, “Airmail Directional Handstamps is a two‑volume study by Ian McQueen that supplemented his previous two volumes entitled Jusqu’a Airmail Markings published in 1993 and 1995”. In these later volumes, McQueen broadened his scope to cover all manner of handstamps that gave routing instructions to mail, not only those that specifically used the word “Jusqu’à”. The result is a comprehensive reference that remains the go‑to source for anyone researching how international mail was directed before the widespread adoption of all‑air services.
While "Jusqu'à" markings are most famous in standard maritime mail (indicating the port where a sea journey ended and land transport began), McQueen’s book explores how these concepts apply to . Specifically, it investigates markings that denote:
Handwritten adjustments made by postal clerks in smaller offices facing unexpected route disruptions.