Roy Benson Bb-Trumpet Roy Benson TR-403 TR-403S

ML bore
Yellow brass bell
Bell rim with wire
Bell throat more open than TR-202
Slightly darker sound
Gold brass leadpipe
Nickel silver outer slides
Stainless steel pistons
Thumb hook on 1st valve slide
Fixed finger ring on the third valve slide
Two-piece 3rd valve slide
1 water key on main tuning slide
Light rectangular case with rucksack assembly
Silver plated