I saw this in an old TTOS Bulletin and I just had to ask "Where is it now??"
This thing is pretty amazing, I'm guessing it is nickle plated. It was part of an auction/door prize for a TTOS Meet.
There were some really unique items given away (or sold/donated) at these events in the 60's and 70's. This McCoy Cascade is one of many such items. Now the auction item is typically some custom Lionel O gauge boxcar or a hat. I'm not saying it was better in the 60's or 70's, I just wish I knew how good we all had it than.