So this is made out of bronze. So on the bottom side it looks like a mirror but if you shine it’s reflection onto a surface you would be able to see this top side on the reflection as opposed to just a normal circle reflection. And the secret for how to do this was lost for a good 1,000 years but its still extremely hard to reduplicate. #ancient #china #universityofsanfrancisco (at USF - Lone Mountain Rossi Wing Wing)














