I think that it is the exceptional condition and the flash / LED flash lighting that made me question the original finish. Glad to see consensus is that it's original.
It looks like the Bavarians setup a quasi-police unit after WW-I to act as a "home guard". There is a German language Wiki page about them that you can run through Google Translate at:
http://de.wikipedia.org/wiki/Einwohnerwehr
http://translate.google.com/translat...FEinwohnerwehr
Marc
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Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.