Mail Delivery is a set of four relief sculptures by Edmond Amateis completed in 1941 for the Section of Painting and Sculpture and displayed at the U.S. Court House and Post Office Building in Philadelphia, now called the Robert N. C. Nix, Sr., Federal Building, at 9th and Market Streets. The reliefs are carved in granite and each measures about 108 inches (2.7 m) in height by 120 inches (3.0 m) in width.