Item #59141 (possibly named "Monster Mace 2h Cataclysm B01 Brown Rock Shaman") doesn't exist. It may have been removed from the game.
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Monster - Mace, 2H Cataclysm B01 Brown (Rock, Shaman) - Live
Monster - Mace, 2H Cataclysm B01 Brown (Rock, Shaman) - PTR
Monster - Mace, 2H Cataclysm B01 Brown (Rock, Shaman) - PTR 2
Monster - Mace, 2H Cataclysm B01 Brown (Rock, Shaman) - Beta
Monster - Mace, 2H Cataclysm B01 Brown (Rock, Shaman) - Cataclysm