Martin, I thought it looked to hilly for that area but I believe you are correct. Looking at the street sign with a magnifier, N. Juanita Ave looks right. You are correct with all the other signs matching up too. That would put the fancy street lights on Beverly Blvd. which makes sense.
I also re-read the caption at the Oldmotor page and it said that all along - duh!
Present Day
GSV
The streetlight has lost some charm but the base appears to have survived