Development and application of a custom green laser system to remove decades old penciled graffiti on raw canvas from Morris Louis' masterwork, Beta Upsilon

In 1989, paintings conservators at the Smithsonian American Art Museum were confronted by the vandalism of Morris Louis’ Beta Upsilon, a masterwork painting from his unfurled series (1960¬61). Comprised of colored bands of paint flowing inward from the edges on an unprimed canvas, the work was defac... View More