Ah, MPSB14/DR 99 3361...just a few hours drive from here up the road east of Chicago at the Heston museum. They have two other ex MPSB locos as well. She is an O&K, and while the LGB 2015 was sold as a "Jung", but similar in appearance of interwar Germanic steam.
Now, with that said, one only has to look further east for the "influnece" in the former Prussia and East Prussia for such small locos as there was much larger number of NG lines there (and still there in some cases) than ever in the "west". Also, being a tender lok, this would be more of a Prussian type loco than anything that would look at home in Bavaria or the like.
And even today, there are little 0-4-0/0-6-0/0-8-0 tender locos of Germanic origin or design in Poland, the Kaliningrad Oblast, Estonia, etc.
As for the LGB 2015s...the best looker IMO, was the KPEV-Prussian green one that was sold by LGB for a very short time in the mid 1970s.