How can I tell if brass is antique?

You can tell if brass is treated to appear antique by looking at the patina. Because real aged brass is often made of copper, the older it gets the more likely it is to have a greenish or bluish patina that you’d expect from copper. Modern brass that’s designed to look antique will have a brownish hue, not a blue-green one. Shop a collection of antique brass from some of the world’s top sellers on 1stDibs.