View of mayor's box in grandstand during the 1910 Fairmount Park races in Philadelphia, Pennsylvania. Railing is decorated with bunting; crowd of spectators sit in bleachers. Men lean over pit railing in foreground; "Simplex" painted on pit railing; policeman in center. Stamped on back: "Spooner & Wells, Inc., photographers, telephones 3472-3473 Columbus, 1931 Broadway, New York." Handwritten on back: "Races and racing--Fairmount Park races, 1910."