Citation grouping - WH (Heer) - Lehr Brigade 900 - Ludwig

Citation grouping of 'Stabsgefreiten' Kaspar Ludwig who served within few different units within Lehr Brigade 900.1) BWB citation which has been signed by 'Oberstleutnant' and unit commander?2) 'Infanterie-Sturmabzeichen in Bronze' citation (handed out the same day as BWB) which has been signed by 'Oberstleutnant' and regimental commander?3) EK II citation of Ludwig while serving within 'Kampfgruppe 900' which has been signed by 'Generalmajor' and 'Brigadekommandeur' Walther Krause (DKiG 19-12-1941,RK 10-6-1943,Metz cuff)4) 'Infanterie-Sturmabzeichen in Silber'!! (besides the 'Infanterie-Sturmabzeichen in Bronze' citation as Ludwig served within Inf.Lehr-Rgt. now!!The citation has been signed by 'Generalmajor' and 'Brigadekommandeur' Walther Krause (DKiG 19-12-1941,RK 10-6-1943,Metz cuff)5) 'Ostmedaille' citation of Ludwig serving within Pz.Gren.-Lehr Rgt.901) which has been signed by 'Hauptmann' andunit commander ?Interesting and unusual grouping!!