These fiberglass reliefs belong to a group of six Richard Hamilton made from the same mould. The catalyst for the series was a color postcard of the Guggenheim Museum, which led the artist to study photographs of the museum along with Frank Lloyd Wright’s plans for the building before making his own elevations, sections, and preparatory sketches and prints. In the first relief, Hamilton renders the Guggenheim in black and white, accentuating the projecting spiral bands and contrasting recessions. Spectrum, the sixth and final relief, is banded with the Newtonian prism, vertically superimposed on the curved horizontals of the building. The “edition” aspect of Hamilton’s Guggenheim series is consistent with Pop art’s preoccupation with screenprints, multiples, and serial productions.