WPA Survey Maps for Los Angeles
Also from the USC Digital Archive, WPA land-use survey maps for the City of Los Angeles, 1933-1939:
The Works Progress Administration (WPA) conducted a land use survey from December 18, 1933 to May 8, 1939 for the city of Los Angeles, Department of City Planning. It covered approximately 460 square miles within the boundary of the City of Los Angeles and resulted in this series of 345 hand-colored land use survey maps. They are collected in 10 books (averaging 35 maps per book) each corresponding to a geographic region within the City’s boundary.
Thanks again to peacay.