According to Godefroid-Adrien Rottenburgh (Brussels 1709-1790) at 415 Hz or 442 Hz
Made of Ebony color resin, 2 ivory color rings, with solid silver key.
Godefroy-Adrien Rottenburgh (1703-1793) was the son of Jean-Hyacinthe Rottenburgh and continued the family legacy as an instrument maker in Brussels in the 18th century. His instruments were appreciated and played throughout Europe.
This traverso was popularized by the illustrious flautist Barthold Kuijken, who owned an authentic original and used it for some recordings. It is one of the most well-known and appreciated traversos.
The 442 Hz version is slightly adapted to perfom well at modern pitch.
