Ok, the plot thickens. I’ve been looking at older models and this one is weird. I’ve attached photos of the U1. Look at how the panel extends above the frame. Also the height is 91”, and what I’ve seen is the U1 was 82” high. Also the panel seems to taper at the top.
Anyone have a clue as to what these actually are? They say U1 but I think they may have been modded with new panels at some point.