Vintage Arts and Crafts Copper Pendant Light Fixture with Amber Glass

Description

The lantern part of this pendant and the canopy are made of solid copper. There are black highlights as well as normal oxidation(see pics) and stains from use.   The chain is usually plated but one would have cut into to prove it but copper outer coating is still good. The ribs of the lantern are formed and soldered on in a bent arch.  The weep hole heat vents at the top of the pendant also appear to be soldered on.  One of the ribs has a minor bend in it.  The glass is perfect, and gives off a mellow amber tone when lit. It tends to have an English Arts and Craft look, but it is hard to tell. Your input would be appreciated. The age is difficult, so the original wiring will be included so the minimum age could be estimated.