I told something about that? Too bad I lost what I have written...
But now you tell it, it's ring a bell, so as I don't remember what I have told, and now I know you were already aware of runes, here what you've seen.
Both the symbol of Theor and Cryan are on the same side and the other is what you think to be the mark of Greffit (one of the usual place to mark a sword).