I don't think these are German but I am no expert. The soles look wrong, the stitching is a bit wonky and the SS runes are very strange.
"Knowledge rests not upon truth alone, but upon error also."
I can't imagine the markings to be original....
"Much that once was, is lost. For none now live who remember it."
Nor can I, truth be told.
The boots are some old variant unused, maybe with some military or naval association....
but I have not seen this kind of marking on real SS boots. I do own a pair of conventional SS black boots ca. 1936 with the VA stamp