is a document about this type of smallsword. It is in German, but I thought others might find it interesting. I'm going to take the time to re-learn the language a bit and translate what I can, but thought I'd park the link here for future reference.
By the way, from what I can tell my example pictured seems to be early 1800s, with some similar examples having been used in the Freiheitkrieg, which I'm thinking if the American Revolutionary War, but could refer to another war for independence of which I'm not familiar. Still, the dates given for this 'krieg' are late 1700s.