I have a Besson 600 Student Trombone for sale. The age of this trombone is unknown, I got it about 8 years ago for my son who played it for a year and put it back in the case where it stayed. It is in great condition for a 8+ year old instrument. Some minor laquer damage and 1 or 2 very small dings. The slide is excellent! Open to (serious) offers. I will be posting this item on ebay in a few days.