I recently got these off a retired steel worker. They were removed from a steel mill. 2 – Hemingray 60's, CD 257, (020) in an absolutely glowing dark blue with long sharp teeth! One is Mint and the other has a fingernail chip under an ear. And a Mint, Hemingray Columbia CD 263, (030) in a greenish color. I will be offering all 3 for sale soon.

Are they possibly Dark Electric Blue?