Signature of Waffen-SS KC&OLC Recipient 'Max Schäfer'

In a very good condition a hard to find original signature on a postwar picture of Max Schäfer.
SS-Standartenführer Max Schäfer earned the Ritterkreuz on February 12, 1943 as SS-Sturmbannführer und Kommandeur of the SS-Panzer-Pionier-Bataillon 5 “Wiking” of the 5. SS-Panzergrenadier-Division “Wiking“ and the Eichenlaub on January 25, 1945 as SS-Standartenführer und Korpspionierführer of the III. (germanisches) Panzerkorps”.
The picture comes with an attached letter of max.