Have absolutely loved reading this thread! Now think it's about time I added my thoughts (for what they're worth) ...
On page 13 (Reply No. 184), Haydn has posted copies of the two "different" negatives. However, each one has an identical drawing pin (top lefthand corner) and damaged tape (bottom righthand corner). Surely just two copies of the same picture attached to the same mount?
Not only the marionnette/monkey case is leaning into the room - look at the chair in front of it, and the chest-of-drawers behind the railings.
And, finally, right from the start I've been worried by the features on the back wall. Although everything seems to fit in nicely with the curve of the ceiling, don't you think that everything is a little too "tight", ie. when the doors are opened, there would be nothing between the aperture and the ceiling. I keep thinking that it looks as if the side walls and ceiling were built on to the existing rear wall!!!!
Pennie