On the Set With Hal Roach, Jr.

Written on the back of the print, "Sat. Dec 17, 1955. "The Set" Can see me at the camera with script. Man in light suit (with arrow) is Hal Roach, Jr." The arrow referred to is on the print's white boarder, and cropped out, but it points to the man in the light suit in the group of people on the left side of the print. He's just of center. I've run an imdb search for Roach, and there are three shows listed as have been produced in 1955. The most likely candidate would be The Public Defender.