Photograph of an advertisement for Mercury Aviation Company, located at DeMille Field, ca.1925. At the time there were three DeMille Fields in Los Angeles. A bi-plane with people looking out the windows is depicted centrally. Above are the words, "Flying", in large block letters with wings atached and the words "The New Industry". Below, a map features Los Angeles with arrows pointing three different directions, each with one of the following locations, San Diego, San Francisco, and Chicago. Further below is what appears to be a silhouette of an industrial city with smoke stacks, powerlines, and oil derricks, with the words "Mercury Avation Co., De Mille Field, Los Angeles, California".; Photoprint reads: "As illustrated in the picture, DeMille operated three fields in the LA area. #2 (not shown) was north of the Wilshire/Fairfax intersection. At the time (early 1920s), DeMille was the largest aviation operator in the LA area and his thoughts began to turn toward the establishment of a scheduled airline to San Francisco and San Diego".