Bb Rotary trumpets have long been the standard in Europe. The last few decades have seen more and more American Orchestra's using rotary trumpets to achieve the authentic tone and sound for many European composers.

The O'Malley OMRTP300 Bb "Vienna" Rotary trumpet

Rotary Trumpet in Bb is a re-creation of the Schargel design. Excellent quality and play ability, for 1/3 the price!

The rotary trumpet has a smaller bore but larger bell. The sound is more versatile and expressive.

Key of Bb

131 mm Bell

11.22 mm bore

10 3/8 mm leadpipe

Yellow Brass Piston

2 tuning slides included - 1 with the standard water key and one with water key and 2 "vienna" keys,or "Wiener Klappen" to improve tone, intonation,slotting, and ease of playing in the upper register.

Protech professional case included
http://www.aswltd.com/rotary.htm
https://www.youtube.com/watch?v=0ziwwRhqgqk