Take the miniature version of the Discs of Norgannon to the Explorers' League in Ironforge.
Touching the Discs of Norgannon once again makes your hand tingle. This time, however, a strange grinding noise is heard from inside the discs.
Your backpack suddenly becomes heavier than it was before. Inside, you discover a miniature version of the discs!
No doubt, an item of this sort would be invaluable for someone interested in the ancient history of Azeroth. The Explorers' League in Ironforge is such a group, known throughout the Alliance; perhaps they can make good use of it.