Notgeld issued most probably by the Hirschfelde Ggrube in Trzciniec with a face value of 20 pfennig.
Coin with the H.G. punch
Borys Paszkiewicz assumes that notgelds with the HG punch could have been minted by the Hirschfelde Grube in Trzciniec, the Hütten Gasthaus in Ruda or the Hohenzollerngrube in Szombierki. The last of the mentioned seems unlikely, because the letter H was cut out on notgelds from the Hohenzollerngrube.
Diameter 22 mm, weight 2.58 g