It's a brown leather satchel with a long strap and a zipper. It says AE on the side, but it's a slightly different shade of brown, so it blends in. I'm imagining it was found in the Inn, possibly in or near the kitchen (a few months ago. I thought it was in my car or somewhere in my room, but when I remembered to check, it wasn't in either of those places).
To my knowledge, there's nothing OOG valuable in there, but several of the things inside have significant sentimental value to Nalick.
If you've seen it, let me know. Thanks!
EDIT: IT'S BEEN FOUND!