A d20 from the 2nd century AD !!!
http://www.collisiondetection.net/mt/archives/2003/12/ancient_roman_d.php
Rare jongens die romeinen.
:spittake:
Johnny Brainwash and I have stumbled upon that nice bit of esoterica as well.
As the platonic solids had a cult based around them, and the icosahedron was the esoteric inner secret:
wikipedia:
"The 12 edges of a regular octahedron can be subdivided in the golden ratio so that the resulting vertices define a regular icosahedron. This is done by first placing vectors along the octahedron's edges such that each face is bounded by a cycle, then similarly subdividing each edge into the golden mean along the direction of its vector. The five octahedra defining any given icosahedron form a regular polyhedral compound, as do the two icosahedra that can be defined in this way from any given octahedron."
'Course, we figured the inner secret was an Illuminatus Prestige Class.
the d12 was the secret one, the d20 represents water.
Though this thing was made hundreds of years after all that.