Here’s another one of those “thingy” things from a past that evaporated while some of us weren’t looking. Or maybe you never even saw one.
This is an insulator, once used to protect electrical wires on power poles. I remember seeing them, not that I often stood next to poles, gazing up at them. And I remember seeing them in old stores that smelled of wood and dust and maybe mildew. Stores that sold all kinds of nifty things that were recognizable if you knew how things worked. DH knew what it was. He’s pretty cool that way.