Photograph (engineering notebook photoprint) of Watson Crossing, Pacific Electric Railway, San Pedro Line, Willow Street, Los Angeles. From center of Willow Street east of Alameda Truck Boulevard looking west across Souther Pacific Railroad and Pacific Electric Railway crossings. Southern Pacific Railroad crossing in foreground just west of Truck Boulevard. Also visible are: utility poles and lines, vacan lots, a few buildings (commercial), automobiles, fences. Legible signs include: "Railroad crossing, look out for the cars", "Calpet Gasoline".