I liked the photo but could only guess where it was taken and what year was the bike. Nice lookin' front brake! Was thinkin' a 1968 or 1969. The location with the guy in the background with the sporty hat made me think must be in Great Britain. Not SoCal obviously right?. Figured somebody would chime in with real identification. Non?!.
So, I tried to get some ID on the photo using the internet. Voila! Location: 1964 ISDT in Erfurt, East Germany. The photo was taken by Francois Gragnon. The bike is a Trophy: I'm thinkin a TR6SC with 333 cc power, maybe. Steve crashed on day 3.