Conn 88HNV New Vintage Tenor Trombone"New Vintage" . 547" primary bore with . 562" bore open wrap F section, vintage style 8 1 2" rose brass bell, modern valve wrap, rose brass outer slide, clear lacquer. C. G. Conn 88HNV The story of the C. G. Conn 88H trombone ultimately begins in 1875 with the vision and determination of one man: Colonel C. G. Conn. Founding a band instrument manufacturing company in the small town of Elkhart, Indiana, C. G. Conn quickly became known for his