We have a 4 year old trumpet that has only seen 2 years of use. It is a Stradivarius Bach SN# 656509 Omega step up trumpet. It is silver plated with what appears to be brass and mother of pearl accents. It has a decorative etching on the bell also. I was wondering if you could tell me anything else about this trumpet as I am going to market it for sale. Also what site would you recommend to market this instrument. Thanks for helping me with these questions.