Bb/C-Tenor-Trombone ASL-703, by Arnolds & Sons
Student instrument design
Goldbrass bell plasma welded
Reinforced bell with bead wire
Short nickel silver outer slide
Traditional water keys
Secund valve
Shortened outer slide
Double bore: 12,7 / 13,34 mm
Bell: 20,5 cm
Yellow brass lacquered
Mouthpiece and case with shoulder straps