This glimpse of Orange Street comes from oldnewark.com, taken by Luke G. Laterza. I'd say it's from the'70s, judging by the Ford Pinto and the "Academy Spires" rising in the background. What a disaster that was. (Both the Pinto and the Spires).
HMMM....Judging by the car with the door left open and it's front left side light/fender smashed and being close to the pet shop leads me to believe Marty had a good collar on the chimp ;^)
This picture had to be either 1970 or 1971. By the mid-70's Orange Street didn't look that nice anymore. The fact that there is a Ford Pinto means that it had to be at least 1970 but I say it can't be any later than 1971.