I'll let Mr. Bigford take it from here. Just click through on any of the images for a high resolution version.
No one is keeping the H.P. Lovecraft torch lit these days like Mike Mignola. One of his characters is a 19th century occult investigator named Sir Edward Grey. He has a very bizzare/sad future but Mignola hasn't explained that yet.
His first stand alone graphic novel is "WITCHFINDER: In the Service of Angels" In it a creature from Hyperborea origin returns from the dead and goes on a killing spree. Figuring heavily in the story is a Hyperborean sword/club. Mignola explained it as "a broken Hyperborean sword that some caveman turned into a great weapon". Being from the culture that created and oppressed the creature it is the one thing it fears.
It's basically a broken blade secured in a split wooden shaft and tied with hide and sinew strips. I made the blade out of bronze (in the book the blade is distincly yellow) and aged the wood and sinew accordingly. The theory is that even though the blade is thousands of years old the metallurgy is so advanced its sheen does not dim.