Bb-Trumpet 601W Diplomat
462" bore = 11.73 mm;Bell Ø 4 7/8" = 124 mm;Yellow brass bell;Gold brass leadpipe;Monel pistons;Thumb hook on 1st valve slide, adjustable finger ring on 3rd valve slide;Includes mouthpiece;Form shaped case;Lacquered finish;601W;Made in United States