Only a printmaker would think of sandblasting deep lines in 1/2" thick glass, and wiping black enamel into them. When dry the surface was scraped clean with a razor blade. There are six bench-wind screens on the East bank of the Cuyahoga River. They are like huge intaglio plates that I inked and never printed. I have worked on printing a set of smaller etchings based on these images. 
