The Martin/F. Weber company, which existed for over 150 years, has gone out of business. They manufactured our colors since 1974. Parts of that company were purchased by Chartpak and they are in the process of manufacturing the Pro Mix colors again with a projected April 2021 release. As well, the rights to our DVDs, were transferred to Chartpak and we expect they will be making educational use of the teaching videos by John Howard Sanden.

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