Ancient talisman

Ancient talisman is a members-only quest item. It is used in Digsite Quest. Once you have passed all exams, go to dig in level 3 site (requires trowel and specimen brush) and you will eventually find ancient talisman. Bring it to archaelogy expert to learn that it's actually a talisman of Zaros. Archaelogy expert is impressed and will give you invitation letter to enter winches.