Curio

Special items

 * Astrolabe, by paying 500 gold, or 250 with [Trading].
 * Power tube, by paying 1000 gold, or 800 with [Trading], after you buy the Astrolabe.
 * Air valve, after talking to Abukar as part of The Library of Saross (Quest).

Quest

 * The Library of Saross (Quest)

Location

 * Maadoran Merchants Plaza Next to Abukar's tower in the trade stalls.