San Francisco Bay Area artist Richard Deutsch approached Performance Structures to realize his vision for a monumental sculpture in San Francisco's Foundry Square. Time Signature rises nearly fifty feet above the pavement before 400 Howard Street's glass and steel facade. Five stainless steel 'pod' forms, inspired by the shape of a centuries-old crucible, are stacked vertically, secured to an internal mast structure by a network of precision-tensioned steel cables. In the event of an earthquake, the pods are able to flex relative to each other, so that their smooth surfaces do not buckle. Stainless steel, with a semi-matte textured surface.