German concentration camp currency? [решено]

Hello friends. Someone has information about this coin, the seller told me it was from a concentration camp.
The coin looks like aluminum or nickel, very thin.

19 mm diameter
thickness of 1 mm

This is a Notgeld coin of the O.G.L.H. - Offizier Gefangenen-Lager Halle (Officers' prison camp in Halle).
There are many denomiations (LINK) but I can't say anything about the authenticity of your.

Цитата: "Idolenz"​This is a Notgeld coin of the O.G.L.H. - Offizier Gefangenen-Lager Halle (Officers' prison camp in Halle).
​There are many denomiations (LINK) but I can't say anything about the authenticity of your.

​Thank..