From dry Tucson, Arizona, here is a very nice vintage 60s-70s Rolfs USA made Leather Portfolio File Messenger Bag Case.
It has a snap closure and measures 15.5" x 10.5". It is in very nice condition, good/good solid with a great patina from use, no issues or problems. On the interior lining is what looks like a water stain, or iced tea? It is faint and I haven't tried to clean it. Solid in every way & ready to go to work!!