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[...] but I know that the only school that concentrates full time on commedia style, mask work and physical theatre is called 'Dell'Arte' in Blue Lake, California. You can take a course and be certified. They also have a professional touring company.
Dell'Arte was co-founded by Carlo Mazzone Clementi who taught and directed commedia in Eureope for years, and he's still around.
Dell'Arte is at First and H Streets, Blue Lake, California and the phone is 707 668 5663.