lucky piece

But yet in those days a man became celebrated for a broad joke, well put, or for a lucky piece of insolence.

He kept it as a lucky-piece for twenty years, often telling the story of how he got it.

All he could find was a handkerchief, a broken pencil, and a bent American Lincoln penny that he carried as a lucky piece.

At this time he was, as Bishop Burnet states, "looking about where he could find a lucky piece of villainy."

Until my money and lucky piece and dis-gun and clothes were gone.