From [1]: “We saw the swastika and then we noticed one of the keys was devoted to the double lightning bolt symbol of the SS.”
Now that's a Baudot/ITA2 character set variation I haven't seen. There's already USTTY, ITA2, weather symbols, fractions (⅛, ¼, ⅜, etc., for stocks), versions with £ instead of #, and versions with a pilcrow. (¶). But I've never heard of a double lightning bolt symbol.
Unicode has a single lightning bolt (Stack Overflow cannot handle this) up in the astral planes with the new emoji. But no double lightning bolt. I suppose a request for that now has to go into the Unicode consortium.
[1] http://www.telegraph.co.uk/news/2016/05/29/hitlers-top-secre...