Sometimes you just win. That's all there is to it, really. We just don't get many pots with purple ash glazing on them. They are in the VERY small minority...and I usually keep them. BUT...this one belongs out in the world, so, here it is. About 4.5" tall, and around 10-12oz, this one has it all. Likely a product of some very unique atmospheric condition that was local to this cup.