It seems that all the money used for divination now belongs to the Qianlong period, so what money was used for divination before Qianlong?

There is no need to stick to this. The reason why Qianlong's money is advocated is probably because Qianlong has the word "gan", which is the main divination for directing gossip. With Gan's divination, the evolution and derivation of all things in the sixty-four divinations have a practical basis. It only plays a symbolic role. It has existed since ancient times and was carried forward in Shao Kangjie, Shao Yong and Song Dynasties. At that time, Qianlong's money naturally had no special purpose. As for your supplementary question, I can only say that I don't know, because since ancient times, people who travel abroad have learned a lot and it is difficult to remember. How can people who don't know their names find out? Hehe, do you give points? Your reward score is zero, classmate. It is difficult for me to type so many words.