I wa snust reading about these. Interesting lil OOPARTS
Discussion
You have any guess of their possible function?
From my experiences in archeology one thing i noticed about a lot of older things is that they are almost always built or done to work with a natural force. Maybe to get a reading or signal when the time for something was or is happening. The design of them is what drew my attention because of the symmetry and the metal used.
Magnetic fields, gravity, weather patterns, conductivity with lightening. Maybe they connected to other devices.
Interesting. Here's a idea about them being used in some way to test purity of metals particularly the metals in coins.
https://mutemandeafcat.wordpress.com/2018/03/03/what-was-the-roman-dodecahedron-used-for/