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 the ancient talisman. Bring it to the archaeology expert to learn that it is actually a talisman of Zaros. The archaeology expert is impressed and will give you an invitation letter to enter winches. The talisman is currently on display at the Varrock Museum.

Trivia

 * Before the quest was released, the Ancient talisman was originally called "Zaros talisman", but Jagex changed the name shortly before the quest was released, possibly to avoid spoilers.