You can ask a question on this page:
https://saxstation.com/ask-a-saxophone-question
Question:
My Selmer (saxophone) is 135771. Does this mean I got a good one?
-Les
My response:
You would know better than me, I’ve never seen it, heard it, or played it.
-Neal
A pretty brief response to the question. But really, I have no idea if it’s good or not. I have never seen it, heard it, or played it.
A number is not going to define how good a saxophone is.
It depends on who built it, adjusted it, and the current condition among other things.
Saxophones made by a certain company in a certain time period might tend to be good or bad, but a number will not define the horn.