Rotary Trumpet in B Flat ATR-4000, by Arnolds & Sons
Concert trumpet
3 Rotary valves, yellow brass
Nickel silver leadpipe
Yellow brass bell plasma welded
Reinforced bell with bead wire
Engraving on bell
Bore: 11 mm
Bell: 130 mm
Trigger and Water key ond 3rd valve
Long waterkey on main slide
Case