King 4B Trombone "Sonorous"

Description

King 4B Trombone "Sonorous".  Early/mid 1970's model.  Used condition, but well cared for and I would consider this in good to very good condition, with some minor dents and scratches and normal and expected lacquer wear which can be seen in photos.
Slide is not dented and operation is smooth.  All tuning slides in working order.
F-attachment works with string and can be restrung as needed.  It was SO much easier to use the F attachment than having to slide to the 6th or 7th position.
Included is the original case with a key for locking, and 2 mouthpieces (one is original King-branded) also in used condition.   I will also include a few books / pieces of sheet music.  Manufacturer's number for the bell portion is 568583 and for slide portion is 4923.
I will ship insured after payment received.
Thank you for your interest!