The serial number is often accompanied by the "Hanson" logo and, on later models, "Made in England". Dating Hanson Saxophones: A Guide to Serial Numbers

The introduction of the flagship Pro One model marked a milestone for British saxophone design. Pro One serial numbers are distinct, highly tracked, and associated with premium vanguard features like unlacquered finishes, custom bronze alloys, and individual setup certifications from the Yorkshire workshop. Why Your Serial Number Matters

Certain middle digits point to the production run or the specific year the body tube was fabricated. 3. The Custom and "Raw" Series

However, be prepared to be proactive. One forum user noted that while emails can go unanswered, Hanson is "very helpful" when contacted by phone. You will need to provide the full serial number, and be ready to describe any unique features like the finish or engraving, as the factory has mentioned there are "a number of copies circulating".