To post photos without them flipping, you need to first resize the image smaller. Or you can download Tapatalk(a forum app) and you can post photos right from your phone, easy!
Is that behind the rear closet? If you’re talking about the upholstered piece on what should be the top, looks to be what SMB is famous for, a bunch of filler trim pieces hiding whatever’s behind or under it. The silver bracket piece looks like it’s one of those extending coat hooks, like a drawer slide, does it slide out? Probably something the previous owner installed and not from SMB.
Here’s the image flipped, but I still think we’re missing part of the bigger picture.....