Every year during the fall, winter, and spring, the lake near my house lowers. This exposes many treasures (most of which are broken) that I find. I have found bottles, cans, marbles, bottle stoppers, insulator pieces and many other interesting things. Up in the rocks, I found this large wall tube. I find broken pieces of normal sized wall tubes, and the occasional whole one, but I had never even found so much as a shard of one this size. I don't know very much about the nob and tube insulators, and this one probably isn't all that rare, but it was still really cool to find this.