This is a new CarolBrass Blackhawk Bb trumpet CTR-5000L-YLT-Bb-BG. This beauty is black nickel plated with gold plated trim.  37 yellow brass bell, lightweight.

Model: CTR-5000L-YLT-Bb-BG

Key: Bb
Bore size: ML (0.460”; 11.7mm)
Main tuning slide: L (Reversed)
Bell material: Y (Yellow brass), soldered wire rim
Bell size: L (# 72)
Bell thickness: T (0.016”; 0.4mm)
Bell diameter: 5.078” (129.0mm)
Finish: BS (Black nickel and gold plated trim kit)
Leadpipie material: Yellow brass
Tuning slide material: Inner / Outer Yellow brass
1st tuning slide finger ring
3rd tuning slide finger ring & stop screw

Accessories:
Backpacker case
CarolBrass 3C mouthpiece
Polish cloth
Valve guard
La Tromba T2 valve oil
Ultra Pure tuning slide lube
Squared crook main tuning slide
Super thin finger button set
User booklet