Those of you aware of the mystery about the Roman Pentagonal Dodecahedron's use I believe has now been traced back to a Ritual Usage beginning long before Roman Empire. --So not any military surveying instrument used by Romans--
This vid explains why the location of the these Roman Penta-dodecas are found along the more northern European military frontier forts, is connected to Asia
To get to the this northern trade route map and ancient buried Pentagonal Dodecahedra, I suggest beginning at 7:14 > and from there the trail has many findings going back to the East steppes etc.
One question remains unexplained, tho, and that is why the Roman military along this northern frontier decided to produce larger versions of these more ancient Ritual Dodecahedra? Cause it was so unique to them? ...?.... From the far east so maybe some cosmic knowledge?....?....
https://www.youtube.com/watch?v=BvwvpUDv6lU