Yeah, that phrase was his way of being respectful to Tama. It's one of the world's worst kept secrets though. He's been forthcoming about what the drum was in interviews over the years.I heard something about this a while back. Apparently, that's the drum upon which Tama modeled its Copeland signature snare. If Copeland was playing an unmarked Pearl while endorsed by Tama, his "of mysterious provenance" description would make perfect sense.