This light fixture was modeled from photo reference for an upcoming Cortland community project. I've been working on trying to incorporate more details in my materials that don't add a ton of time to the process (read: requiring full UV unwrapping). In this case, the dark oil-rubbed bronze is showing some wear on the edges through a VRayBlendMtl being masked via a VRayDirt map with inverted normals (to expose the concave curves instead of the convex). A subtle Noise map is assisting the edge wear so it's not too perfect.