German WWII Armband

German WWII armband.  White cotton material and on the face it's printed "IM DIENST der DEUTSCHEN WEHRMACHT"  A nice and pretty clean armband this one has several ink stamps on it.  Because of the stamp, and the overlap, you can read it, but I see also a Feldpost number as well.  This armband would have been issued to people in the "Service" of the armed forces.  The Feldpost number would show it was isssued to the armed forces, maybe a combat unit.