This is Eberhard Heder (1918 - ?) who was an RKT, and Leader of the SS Panzer Engineering Batallion 5 "WIKING". He signed the foto with Silver Ink. To the left is a smaller (5.7 cm x 8.3 cm) foto that I will sell for $29.95. CLICK THE IMAGES IF YOU WANT TO SEE THEM BETTER.