Charcoal was a catalog color in 1954 -1958, 1961-1962, 1971, and was occasionally made in the 2000’s. I was recently told by Blenko that “We are not making charcoal anymore.” There were evidently problems getting the color right.
Charcoal made in 1961 and 1962 is very blue. This example is from sometime in the 50’s. Many examples of Charcoal will be cased in Crystal to make them appear lighter.
Blog Update-November 23, 2013 You are probably aware that Blenko’s ban on making Charcoal did not last. Charcoal was made in 2012 and 2013.