Quote Originally Posted by sawmilleng View Post
I'm not so sure its all copper. It may be a double sided circuit board. One side looks like it has circuit traces. Take a grinder and touch it to the edge of the board...if it is solid copper, you will tell by the ground area. If its a circuit board, the center will be some sort of fiber material with thin layers of copper on each side.

Jon.
I might just be a double sided circuit board. Question is do I just grind the circuit etching and sell it as a copper plate? Would the check that at a yard?

appreciate the replies