Hello. I have what appears to be a older Cornet. It is a Bundy. It has Bundy H&A Selmer Inc. Elkhart Ind. engraved radialy or around the diameter of funnel end of the horn, I think it's refered to as the Ball? The serial number is 39659. It is a piston type and not rotary. I'm tring to find out when it was made and what it may be worth or should it just be displayed and looked at because it looks cool? I treid tracking the number but had no success. Any advise would be appreciated. Thank you.