Titan Cobaltpiece

Titan Cobaltpiece is a currency.

Source
Titan Cobaltpiece can be obtained as a reward the following quests:
 * A Coblyn Catastrophe
 * A Meal Fit for a Fugleman
 * Angry Angry Acolyte
 * Ba Go's Behest
 * Friends in Low Places
 * Fulminating Furnaces
 * Genius at Work
 * Glutton for Punishment
 * Spread the Wealth
 * Wrath of the Roundsman

Uses
Titan Cobaltpiece are used to purchase items from the following vendors:
 * Kobold Vendor