I have an old vintage, not modified in anyway, Conn from the 1940's I think. I call her the naked lady Conn as the engraving on the bell reflects. My grandad gave me the horn in the 6th grade, I'm 35 now and she still plays flawless. I am curious of a ball park value, I have her insured for $10k but I think it may have much more value. I will never sell this horn but want to know how valuable it really is. I have photos, serial number, etc. Any guidance is appreciated. -Blake