COHN-STONE STUDIOS artists Michael Cohn and Molly Stone are leaders in the art of glass. Working together since 1980, their glassblowing studio is known for innovative designs and exceptional execution of high quality decorative glass pieces and one of a kind sculptural works of glass art. Their award winning work is collected world wide by museums, galleries, botanical gardens, corporate and private collectors. The San Francisco bay area glassblowing studio is located in Richmond, CA. Inspired by the natural world, science and technical mastery merge at the hands of these artists who create transcendent works of glass art.