Above the main entrance is a carved grille entitled "Eagle," completed in 1936 by artist Stuart Holmes.
An interior mural depicts an airplane flying above Mission San Luis Rey de Francia and the San Luis Rey valley as it once looked. The 16' x 6' oil on canvas titled "Air Mail" was painted in 1937 by artist Elise Seeds (1902-1963). It is signed, simply, "Elise." In addition to being an artist, Elise (Cavanna) Seeds was an actress, comedienne and dancer. (Her full name was Elise Cavanna Seeds Armitage Welton.)
Both pieces of art were commissioned under the Treasury Department Section of Fine Arts.