Anti-smog mufflers being installed on San Fernando Valley School buses, 1956

Supplementary material includes a newspaper clipping from the November 25, 1956 edition of the Los Angeles Examiner which features an photographs and captions from this record under the heading "Clearly a Proper Thing to Do". For full supplementary material, please see record.

EXM119900451EXMN11990045EXMN119900451