This Charcoal mini water bottle was also a limited edition piece offered at the 2012 Festival of glass but they are not numbered. They are just limited in number. The story behind these is that there was some Violet glass still in the tank when the ingredients for Charcoal were added and that is why there seems to be a purple tint to these. Like the “cullet purple” glass from the 2010 Festival of Glass, this color cannot be reproduced.
This example is also signed by Walter and Andrew Blenko.