I found some old wiring in my garage. Is this copper wiring and what is it worth?

My house was built in 1906. I was going through my garage that was built around the same time, and found the old wiring stapled to the rafters. I cut it down and torn the sheathing off. Is this copper in these wires or did they use something else. It is hard to tell but when cut in half it looks like copper, but length wise it has a dull metal look to it. If it is copper, how much is it worth per pound and who should I sell it too.