Photo album Wehrmacht Nachrichten-Abteilung 57 ?

Photo album 23x16cm, appr. 68 photos. First pages RAD service Einheit 5/328. Major part starting 1938 motorized nachrichten? On several shoulder boards number 57 is visible, so probably motorized Nachrichten-Abteilung 57 (?) home based in Stuttgart, 25.Infanterie-Division(mot). Last pages some photos in Russia. One photo is of “Korporalschaft Truppenübungsplatz Schwarzenborn 1938”.