Serghetto's Box IV

Note: Tooltip is incorrect as the Serghetto's box is available from Development Merchants only so far.

Source

 * Magic Materials also known as Development Merchant
 * Serghetto's Box III

Items from Sergetto's box IV

 * Serghetto's Box V
 * Lv.66 Skill Advancement Book
 * Lv.68 Skill Advancement Book
 * Lv.70 Skill Advancement Book
 * Refined Duranium Medallion
 * Enhanced Duranium Medallion
 * Flawless Duranium Crystal
 * Even though not listed this did drop out of Serghetto's Box VIII