Fitting (top)

Fitting (top), originally uploaded by Bearded Jon.

Copper welded to copper, greening with age. Theres a valve off to the left and a drain plug on the bottom and the purpose of a big old piece of pipe on the garage's second level is beyond me.

The surface came from the factory roughed up but theres also a smoothness to it. It must be that its cast brass rather than smooth copper tubing?

The building is not that old and this pipe, while in the open air gets minimal exposure. The oxidization will keep going until some maintenance guy comes along with a wire brush and some solvent.