This is a true mid century amber crackle bubble glass Caged in black liron metal light fixture. It can be used inside or out!! I am quite sure it works as it was purchased from an estate where it was used! This is an awesome focal piece that will light with a warm glow!! Mid Century, Hollywood Regency, Renaissance it makes a strong statement. The crackle glass has a rough finish throughout. Purchased from an estate in Tucson Az which is why I think it is from Mexico.