The Altus TS flute is made entirely out of Sterling silver (925). A silver coating is then added on top of the body and the mechanism. The TS flutes have drawn tone holes and French pointed arms.
The German wind instrument magazine SONIC about the ALTUS TS:
The ALTUS TS is a perfectly handcrafted solid silver flute. Talking about intonation it is one of the best instruments you can get on the market. The flute comes with a head-joint which makes it easy to produce a stable and shining tone. (…)