(Waffen-SS Postkarte mit Unterschrift). A signed postcard depicting then-Hauptsturmführer (later Standartenführer) Fritz Klingenberg, in uniform and with the Knight’s Cross clearly visible, the lower half of the image overlaid by Klingenberg’s handwritten signature in blue ink, the reverse unused and bearing a Hoffmann studio mark, measuring 90 mm (w) x 140 mm (h), a rare signature in extremely fine condition.