In 1979 and 1980, he taught at the Pilchuck Glass School in Washington state, which initiated an ongoing exchange of knowledge between the Italian maestri and American glass artists, groups that in the past had guarded their techniques as trade secrets.
In 1979 and 1980, he taught at the Pilchuck Glass School in Washington state, which fostered a continuous exchange of expertise between Italian masters and American glass artists, groups that previously safeguarded their techniques as proprietary knowledge.