In 1911 the Heckel bassoon number #5000 went into production. This instrument was sold to the Royal Court Theatre in Dresden for the bassoonist W. Knochenhauer.
Heckel Bassoon Number #5000
![](https://heckel.de/wp-content/uploads/2019/01/Fagott-5000-1.jpg)
Advertising leaflet for the Heckel Bassoon Number #5000