The WKC catalog shows saber models 1015 and 1016 in silver next to the 1013, 1014 with runes. Although it does not list them as being for the SS one would think they are.
Gunther, there is a well known photo of an SS officer with silver lionhead and runes knot on page 184 of the Angolia cloth book. I have seen the same photo in other books also.