Ok, what you have there is a max damage, inscribable, gold, r10 "War Hammer" All those bits of information are important to know when trying to PC an item.
From that extra 20% damage (in white text) at the bottom, I can tell it's also already customized. Therefore, it's not worth anything at all to other players. Once customized, only the character it was customized for
(or that character's heroes) can ever use it again. That's the downside. The upside is you get that unconditional 20% extra damage.
For future reference, the named "War Hammer" has several possible skins. When asking for price checks, it's always good to check Wiki first. If your item has more than one skin possibility, you need to tell us which one so we can help with PC. Here's a link about the different skins for "War Hammer"
http://wiki.guildwars.com/wiki/War_Hammer
Cheers,
Luny