Originally Posted by Valter Gorenc
Original, but not with attached bar "fur schlesien" (it should be "O SLASK") and it's not Silesian eagle.
"It is not a regimental badge but commemorative badge for polish-czechoslovakian war (for tschesinian silesia), 1918-1919.
That type of badge was also in wear by polish members of an silesian uprisings."
This is the correct information.
Here is the correct badge and a selection of German Schlesienadlern for comparison.
The Polish badge with "Für Schlesien" is a fantasy cooked up by someone during the 1980s when the Silesian Eagle began to gain popularity.
This should really be discussed in the Freikorps forum; not here.