Public Sculptures by Roger Berry seen at 160 Spear St., San Francisco, CA, San Francisco - Tau

Tau

Tau is a 1984 stainless steel sculpture that measures 96" Diameter x 14" deep. It was created by Roger Berry at 160 Spear St., San Francisco, CA.
Each of the four intersecting cones of Tau describes the form of the solar year. The forward side is in full light in the winter the back surfaces are filled with the summer sun. The building to the south of Tau casts a shadow on the sculpture much of the day.