[Question/Help!] Any Idea what amulet and from which monk?

Hello Everyone,

As you can see its my first time here. Haahahah. Very new to the amulet scene and all. My dad has one of this amulet and i was wondering what is it and anyone got any idea from which monk is this amulet from? Do we need to do any prayers to it if i want to wear it?

Thanks a bunch to whoever that can enlighten me! ;)