Members of the L.A. Police Dept. and the L.A. Fire Dept. with a miniature model oil derrick, planning the prevention of oil field fires. In the 1920's L.A. was pumping one-fifth of all the oil being pumped in the world, and oil fires were frequent. View 3: two men study the design of a model of an oil derrick.
Oil well drilling rigs--California--Los Angeles Petroleum industry and trade--California--Los Angeles Oil fields--California--Los Angeles Fires--California--Los Angeles Architectural models
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