Grouping to Panzergrenadier Ernst Rügger

Small document and belt grouping to Panzergrenadier Ernst Rügger, with Erkennungsmarke reading Panzergrenadier. Pionier Ersatz und Ausbildungskompanie 25. The belt is a wartime modified example with two big fat rivets which is also clearly pictured in his portrait. The group also contains his Arbeitsbuch and a number of Feldpost letters. The belt itself is marked De Heus which probably is a Flemish or Dutch maker. The group would be a nice base for further research!