English: "Worship" sculpture, by Ralph Stackpole, for the altar of the Palace of Fine Arts, PPIE, San Francisco, 1915, reproduced in "The sculpture and mural decorations of the exposition : a pictorial survey of the art of the Panama-Pacific International Exposition", pg. 119, as found at https://archive.org/details/sculpturemuralde00perr_0/page/118 Sculpture deteriorated and was destroyed by the 1930s