500 Transparent Plate (#7355) <<<--- there is the number code for the item..
1st. @whodrops 7355 u should be able to know what monster drops the specific item.
2nd. @alootid 7355 - it automatically loot the particular item so you will see what the item was, coz' it'll go straight in your inventory.. (remember!) don't use autoloot coz the item will not be filtered. just alootid 7355. (y)