This is a spiritual power amulet pendant of the Most Victorious Kongō Dai Ajari Yasuo Daikaku Son (the founder of the Agon-shu sect). This is a very powerful religious item, said to bestow the spiritual power and protection of the founder, who is called the second Buddha. It is believed that this item is no longer available through religious offerings, making it a valuable item. It has been stored at home and has been purified again through a Goma fire ritual. I will sell it to someone who understands its value.