Beyond a doubt, this large dot stacker marble has some of the best encalmo dot work that you will EVER lay eye on. Be careful though, it is said that if you stare at this one too long that Heimdall will steal your vision!! An AWESOME MASTERPIECE from the Gongsta!! This one is signed with an 'X' for Xperimental, and Mike told me it was the first of its kind, a #1. Signed 'M Gong 2.10 x'.