What model insulator? Mine is a Brookfield from my grandfather who spent a lifetime in telephone industry back in the day. Nice pic btw!
Hemingway was one of the biggest manufacturers. Hang on to them! There wouldn’t have been telephones or telegraphs without them. I enjoy trying to explain all this to my kids. That phone lines ran on poles and the insulators kept the electric phone signal from going down the pole into the earth. Then they say, “Dad tell me another funny story...”Thanks. That particular one says Hemingray. I did know it was an insulator but not much else about it honestly. We have some other ones laying around also in blue, green, and clear. found them on my wifes family land and thought they looked cool so we brought a few home for the back patio. They have a huge pile of them there!
Nice. One of my grail pens there.
Great photo my friend.