Has anyone considered that it might've just been a novelty? A fancy paperweight? I wonder if, in a couple thousands of years, archeologists will wonder why some people owned a 10x10cm cube of tungsten...
This just got me thinking, it would likely take us hours to explain an ancient Roman what a "paperweight" is. The fact that paper a) exists, b) is our main writing support, and c) can be made so lightweight that a slight breeze can blow a stack of it away would be mind-blowing
So the two sticks kept the scroll unwound around the reading position.