My Dad had this one hanging in his shop. He gave it to me when he retired back in 2000. It was covered with ~40 years of black dust (some of it asbestos, no doubt). After a gentle wash and a coat of wax, it cleaned up very nicely. It's an original (circa 1962) and not a repro. I've seen a few like it, but those were very rusty and didn't have the hanging frame.
