Mark used to make clown filigranas (filigrana marbles with 14 different cane) about every 5 years, although I don't think it happened in 2015. This gem is from 2005, which was in my opinion the greatest year ever for MM clowns. The variety of cane Mark used is jaw-dropping, each one flawlessly executed and sooooo beautiful! He created this one on a gray base, with the other option being a chocolate brown base. I'm letting this one go from my personal collection, so hard because I picked out such a gem when I bought this from Mark back in 2005. It is brilliant and oh so beautiful!! Signed 'Matthews 2005'.