Who doesn't appreciate dark over light ambulances?
Reverse lens in taillight combined with exhaust under bumper dictates this is a '51. Waistline molding, etched window design, and license plate mount relay that it is a '51 Superior ambulance.
Caddy is not the ambulance stated below in wreck. Rather, I believe it is referring to the whitewalled Chevy truck base unit whose underside is facing camera.
Accident 109th and Figueroa, 23 August 1951. Gasoline truck and four vehicles in wreck. Ambulance also in wreck. Overall shot of whole intersection showing how four vehicles end up in crash. Note right hand side is sign saying: 'Remember, Safety'. Drivers of automobile and pickup truck were uninjured.
X89698 license above, X80131 below - another SoCal ambulance. Same fleet? Different coach builder - waistline trim, rear window shape/trim, corner lights, and etched panels are all different. (Reason for switching around coach builders in such a short period of time..?) Note 'California' rear window graphics not present in above '51.
Shooting victim booked, 4 March 1952. Harvey Davis and Glen Larson (Ambulance Attendanta); David Shepro (suspect). Photographer: Sandusky. Reporter: Gaze. David Shepro, 17, 1130 18th Street, Santa Monica; Shepro is being transferred to General Hospital prison ward after police, summoned to hospital to investigate victim of gunshot wound, decided to book Shepro when his story of shooting sounded suspicious.
Both photos part of Los Angeles Examiner Collection.