Cannonball 725-S Professional Bb Trumpet Big Bell Stone Series Made in Germany. Serial# 111606
- Big Bell® 4.921″ (125mm)
- Medium Large Bore: .459″ (11.66mm)
- Straight Resonance Bracing.
- One-Piece Hand-Hammered Bell.
- Monel Pistons.
- Boxed Bronze Springs.
- Nickel-Silver Outer Slides.
- 3rd Valve Slide Stopper.