A person emailed me this photograph on 07-02-05. Here is the description he furnished to me in that message:
I have a Hemingray_ 42 underneath is 0_8. It's made in U.S.A. underneath is 15...It has a green tint...and has a brass ring on top of it.
That brass ring is the most curious part about this insulator. Any ideas here?
(Edit 07-02-05 9:38pm PDT) I believe I now know what the brass ring is for, thank you to those who emailed me about it!!!