1. I have a nice old old old Conn 23b trumpet that is I think at least 20 - 30 years old does anybody know when Conn started making the 23b and did they make them in Elkhart as these parts on this trumpet appear to be Elkhart type parts the serial number is 426 2497 it says Made in the USA above the serial number not on the Bell is this an Elkhart horn or Elkhart Parks it's got to be one of the others is anybody no help?
     

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