Picked this up recently, paid a bit much, but it's a great image of Father and Son in the famous Soundstage 28.... Yes I know it's a publicity still...
Paul, that is a great photo.
When I worked at Universal, I was able to explore, on my own, Stage 28, go up the stairs behind the opera boxes to get to the various levels, including the Infamous Box 5. It is something to see. From what I gather, all of the original theater seats were removed long ago (that level is actually covered by a floor so that it is on level with the outside doors).
Here are a couple more current shots of the same box, that is in your still. And where the floor currently is:
What is a real shame, is that grip crews often carelessly lean ladders or scaffolding against the plasterwork causing chips, breaks and cracks; I wish Universal would take a better stance with that, otherwise, it will continue to sustain damage.