I have a bronze arrow. I want to know when it was made and how much it costs.

This arrow is not an arrow of the Qin Dynasty, but an arrow of the Warring States. At that time, the arrows of Qin had been standardized and the workmanship was very fine. The error of each arrow is very small. The style of crossbow head is similar to that of bow and arrow head, and there is no such fierce barb. As for which country this arrow belonged to during the Warring States period, it's hard to say, but it's not very valuable. After all, this thing exists in a large amount in the world, which is estimated to be one or two hundred dollars.