Blockade's Lost Shield

Source
Blockade's Lost Shield is an epic world drop item; it can be dropped by level 82–87 mobs in Cataclysm zones.

Trivia
The name of this item refers to Blockade, who is notable for his large collection of rare and unique shields. When this shield was released, Blockade's collection included 46 shields —making this one number 47, as the flavor text mentions.