For those who aren't aware of how to use them, basically, once you have made your character and brought him/her to Doomlore, you can get a runner to run you over to the Kathandrax dungeon. Once there, map in and out of the dungeon to get the quest reward by handing in one hammer at a time and you will be getting 7.5k experience as well as 1.5k gold per reward.
B/O will be listed at a later date. Good luck and happy bidding!
S/B - 1 Gold
C/O - 5k per hammer
B/O - SOLD @ 5.5k per hammer - Thanks Alberto! Nice and honest trader

Mods, please close thread. Thanks!