Do It Yourself Telephone (and Telegraph) systems were set up by farmers on runs of barbed wire fence in places where Ma Bell hadn't yet meted out her monopolistic reach.

https://gizmodo.com/barbed-wire-fences-were-an-early-diy-telephone-netwo...

I was looking for images of this to illustrate a new article on music and information theory that will be up on my sothismedias.com website soon. I thought this piece I linked to here would be of interest to Green Wizards.