Here we have a very nice walnut desk organizer. It measures 10 1/2" by 6 1/2" and is about a inch deep. I am told from the 70s.
You open the lid and you have a slot for an eraser, below that post-it tabs that are refilled from the back of the case. Then a Rhodia small bloc pad, Post-it notes, a slot for paperclips and at the bottom a slot for a pen. I have placed this Desk Organizer on my desk and it works fine. Add one to your collection.