Jusqu-a Airmail Markings- A Study Ian Mcqueen !!better!!

Ian McQueen's "Jusqu'à" Airmail Markings: A Study is the definitive guide to 20th-century postal instructions that directed mail to be carried by air only until a specific destination. The book is an essential tool for aerophilatelists, offering a classification system, historical context for 1930s-1950s air routes, and a rarity guide for valuing and authenticating covers.

It elevates these "instructional" stamps from secondary marks to primary objects of study. Jusqu-a Airmail Markings- A Study Ian McQueen

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. Ian McQueen's "Jusqu'à" Airmail Markings: A Study is

: It provides a comprehensive, illustrated listing of different Jusqu'à handstamps and related air-cancel marks from around the world. The Supplement In the context of postal history, a Jusqu'à