This one is pretty rough. It's in specimen condition, but it's a specimen from the Hemingray glass dump in Muncie, Indiana. The Hemingray-Muncie glass dump is a pretty iconic place in the world of insulator collecting due to the rare and experimental pieces that have been dug up there over the years. A few years ago I got the chance to visit it myself. This piece is not from my trip, it is one I bought from someone else who dug it up there.
This particular piece is a CD 252 Hemingray-62 cable insulator in carnival glass. Hemingray carnival glass has been dated to having been produced in the years 1932-1936.
Here are some links for more information:
https://hemingray.info/database/detail.php?cd=252
https://hemingray.net/articles/hemingray-carnival/
