Watch Max Erlacher demonstrate for his Studio course, Engraving and Cold Working Techniques, in which this master engraver shares his knowledge of copper, stone, and diamond engraving, and cold working techniques. Max Erlacher has more than 40 years of experience with copper, stone, diamond engraving, and cold working techniques. He received a Master Engraver Certification from Loebmeyr, in Austria. He then worked for Steuben Glass and owned his own business. Mr. Erlacher has worked on numerous art glass projects for museums, as well as private collectors.