I was recently reading an excellent publication that Hirtenberger published a couple years ago titled:
It says they were still making pinfire cartridges during World War 2.
Here are a couple of the later boxes and cartridges; A later made 7mm box and a 9mm box that was made between 1938 and 1944:
These have the script H headstamp just like their rimfires.
And here are a couple older boxes made between 1888 - 1904.
These have the KC inside a star-burst headstamp:
Additionally, the box on the right is the box that the shot load (Schrotladung) cartridges with all of the sabot length variations I posted a couple weeks ago would have been sold in.