COURTOIS 410GM Professional Trombone - Amazing sound! Great condition! RARE!

I am selling my Antoine Courtois Custom Signature Series trombone. It's an amazing instrument This is the Gilles Milliere 410 large bore tenor (.547) with F attachment and Sterling Silver removable leadpipe.The trombone was built by the finest Craftsmen in the Courtois Paris factory. Mr. Milliere was the Principal Soloist at the Paris Opera House for over a decade and demanded Courtois produce a trombone for his use to the highest standards. If you are a Principal or second trombonist this instrument will make you stand out in the crowd. Beyond the beautiful design the instrument projects with power and control and blends with ease when required. The slide and trigger are tight with good compression. The spring on the attachment is light providing quicker articulation. The lacquer has been removed to enhance the timbre of the instrument.  I purchased the trombone from a fellow Professional trombonist in France.