Thanks Tobylou - that's where I'd got BOTH my year of birth identifiers. My original calculations put it at 1973 and I had that site stored in my favourites, now I look and the same trumpet seems to be getting younger. I might just have to go to the Getzen site and ask the question directly - perhaps that is the reason that Getzen don't link to it anymore - perhaps it has been corrected (as they ask down the bottom of the linked page). Whatever has happened, I can now no longer be certain of the timeline on which my trumpet sits - and it frustrates me a little. Be that as it may, it is a truly nice horn, I love the sound, I love the valves - they are the best I have on any of my trumpets, but my Harrelson is easier to play accurately .