Jusqu-a Airmail Markings- A Study Ian Mcqueen High Quality Instant

These studies are essential for any postal historian trying to "deconstruct" a cover to understand why a letter took the path it did. You can find used copies of his works on specialty sites like Are you looking to identify a specific marking on a piece of mail you currently have?

The book includes numerous illustrations and measurements, making it the primary tool for authenticating rare markings or identifying common ones. Jusqu-a Airmail Markings- A Study Ian McQueen

: Just two years later, a major supplement was released (pages 110–273). This addition was significantly larger than the original book, reflecting the rapid growth of information in this previously neglected field. These studies are essential for any postal historian