Document grouping to Feldwebel Erwin Hinderer serving with "4.Bau Bataillon 57". The Grouping consists of the certificate to 1939 War Merit Cross 2nd Class with Swords. Issued on 19. April 1942. Original autograph by Generalfeldmarschall Günther von Kluge (Knight's Cross of the Iron Cross with Oak Leaves and Swords winner). Condition 2.
Promotion document to Feldwebel. Issued on 23. September 1942. Signed by a Hauptmann. Folded. Condition 2.
