Thanks for your reply. What would be their full name? I tried looking up various combinations of Chaos Swords, Chaos Blacksmithing, etc. and it always goes to a buynch of listings for the Dark Souls video game.
I purchased this dragonclaw sword from a fellow sword junky. He purchased it from an estate sale in Texas. He was never able to identify the mark. I have been unable to identify it thus far. I'm hoping someone might be able to help. There are no other markings anywhere on the sword. Any ideas?