When I talked about Scotty's precision and architectural influence in his bio, this is the type of marble I had in mind. This incredible gem has FOUR perfect reticellos that are actually tubes that are flared wide open on both ends. Those 4 rettis are then perfectly laid out together in the marble, SOOO perfectly that when you look through the center hole on either end it's a perfect round hole all the way thru the marbles. I've never seen anything like it in a marble, so flawless and so perfectly executed, and SO freaking cool to view in hand where you can see the true dimensionality of it. It is 100% a portal to a different world that will take your mind to place heretofore unknown. Along with all of that, the pretti designs are all completely laced with UV glass as well, so it's INCREDIBLE under the black light. Killer gem for the best of collections!