John Lewis, cast glass, copper center studio art, with black glass base. Very heavy piece. Size: 9 1/4 x 9 1/4 x 9 1/4 in. John Lewis Glass Studio is now considered one of the largest privately owned hot glass studios in North America. At his state-of-the-art casting studio in Oakland, CA, Lewis designs and produces cast glass sculpture, tables, vessels and site specific architectural projects. Lewis often works with architect Frank Gehry.