This is a C rotary trumpet designed by trumpet maker Franz Straub in Germany, and hand built at Josef Lidl in Brno, Czech Republic. The Lidl company is in a new factory and also has a new corporate owner, Stoezel Musik in Germany.
This trumpet is made of all red or rose brass with nickel inside and outside slide tubes. The rotary valve casings are also nickel. The valve mechanisms are modern miniball linkages, and the third slide has a tuning trigger. One waterkey is included. It's packaged in a basic plastic rotary trumpet case from Amati. Standard trumpet shank will fit most common mouthpieces.