ORIGINAL: jeffie8696
But what does HP stand for ? I will give you a hint, the H is for Hirtenberger. And what is the translation? [img][/img]
Hirtenberger Patronen or can stay for Hirtenberger
Präzisionstechnik GmbH & Co KG
. Founded in 1860.
See this link:
http://www.hirtenberger.com/
HP engines was produced by: Hirtenberger Patronen- zundhutchen- & Metalwarenfabrik AG, Hirtenberg, Austria