Mary Shaffer is recognized as one of the founding artists of the American Studio Glass Movement. She studied painting at the Rhode Island School of Design in the 1960s. In the 1970s, she developed a unique technique adapted from the auto industry, which she calls “mid-air slumping.” It allows her to use gravity to soften plate glass into a form, which she often combines with metal tools. Her sculptures range in scale from small objects to room-size installations and public works.

– United States Artists web site

These two images by Brant Brogan