Is there a copper scroll?

Excuse me, I'm curious about a particular historical artifact that's been mentioned in some circles. I was wondering, have you heard anything about the existence of a so-called "copper scroll"? Is this an actual artifact that's been discovered, or is it more of a myth or legend? I'm particularly interested in the authenticity of its existence and any information you might have on its significance or relevance to the field of archaeology or history.