This is a new Schilke SB4-MG in siver plate. 
 
From Schilke:
"Building upon years of successful collaboration with Marc Geujon, the world renowned 'Super-Soliste' of the Opera de Paris Orchestra, Schilke Music Products proudly introduces the SB4-MG Soloiste Series Bb Trumpet. Innovation abounds, as a newly designed valve casing, leadpipe and bell combine to offer unparalleled clarity and resonance with a rich and brilliant core."
 
Features
One-piece, Hand-Hammered Yellow Brass Bell
Soldered Bead w/ Steel Wire
#2S Bell Taper
.460″ ML Bore
Soloiste Standard Leadpipe
Semi-Round Main Tuning Slide w/ Brace
Medium weight
1st slide saddle & 3rd slide ring
 
Asking $4,540 + Shipping