QUOTE(barry-clari @ Nov 20 2011, 07:37 PM)

QUOTE(clarijo @ Nov 20 2011, 12:13 PM)

Thank you both. I've searched everywhere and there is only one four figure number, which begins with a 2. My sax has the large thumb pearl under the octave key, so I'm guessing it's an early one but perhaps I'll never know!
Email Yamaha perhaps, with description and serial number?

I had a ferret on "sax on the web" an American sax forum. They seem to use the main Yamaha US distributor to get that info. I suspect that if you contact the UK/European Yamaha contact, they'll help you out, or point you in the right direction.