Great work accorn8332....
Santa Monica & Sepulveda it is.....I lived in Westwood/Brentwood for 30 years (starting in 1979 when I was just up the street at Sepulveda/Ohio), I went through this intersection a thousand times, and just did not see it....suffice to say the corner changed mightily from the late '60's to the late '70's.
The light standard protruding on the foreground right is for the Mobil station that still stands....the photographer would have been perched on the rooftop of the building to the right, there's the light fixture...from the 1974 Ed Ruscha images...
More '74 Ruscha....
Here's the San Diego Fwy. sign....
The Shell station at the s.e. corner was a Texaco before its demise....
Here's the karate studio on the s.w. corner...
And the fast food place....
The Westwood Gateway office towers have occupied the s.w. corner since about 1980.