Jusqu-a Airmail Markings- A Study Ian Mcqueen [work] -

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

For the aerophilatelist, "Jusqu'à Airmail Markings" is more than a catalog; it is a detective’s tool. Jusqu-a Airmail Markings- A Study Ian McQueen

Ian McQueen’s work is widely regarded as a foundational text for identifying and cataloging these markings. While early airmail catalogs often focused heavily on postage stamps and first flight covers, McQueen turned the spotlight onto the operational markings that facilitated the mail's movement. : These markings are "auxiliary markings

In the context of postal history, a Jusqu'à marking indicates the specific point to which a letter was carried by airmail. During the early and mid-20th century, airmail routes were often fragmented. A letter might travel by air from London to Karachi, but then continue by surface transport (ship or rail) to its final destination. While early airmail catalogs often focused heavily on