This really cool combination Insulator, Pin and Tie Wire came straight out of the Newhouse (ARGO) Tunnel in Idaho Springs, CO. The rare postcard go-with that shows the tunnel line construction (click closeup) was found separately. The WGM 106's can be seen in the upper right side. I received this in a trade with Mike Miller in the spring of 2011. He got it from MIke Bliss (who found it) a few years earlier.