No text, but a visual code

[Linda]

Antonio, here are some examples I found

There is actually a resemblance, but at the moment it’s only general. In the center of the volvelle, the Sun or the Moon is usually depicted. I don’t quite understand yet what the three dots in the form of a triangle might mean (in the last example, which is somewhat similar to the figure from the Rosetta Stone, there are four dots).

The De Sacro Bosco example seems to fit, with 8 groups of three. The two lines joined at the middle could reference the turning piece. I don't know about the one sun and two moons idea though, I don't understand yet about trines etc.

This one wasn't explained as to how it works where I found it other than it is an eclipse volvelle to find out if you would see it at your latitude.