English horn after an instrument stamped by both J.H. Grundmann and J.H. Floth, makers in Dresden at the beginning of XIXth century.
A = 430 Hz, 2 brass keys, optional keys : C# (F#), G# (C#), octave key.
An extended version of the same model allows to reach the low B (E)
The original instrument
Preserved in Lisbon Museum of Musical instruments together with an other English horn stamped Heinrich Grenser.