Prior art: https://en.wikipedia.org/wiki/Roman_dodecahedron https://en.wikipedia.org/wiki/Roman_dodecahedron At least 129 extant, made from bronze, some in exce

Prior art: https://en.wikipedia.org/wiki/Roman_dodecahedron https://en.wikipedia.org/wiki/Roman_dodecahedron At least 129 extant, made from bronze, some in excellent condition. Unclear what their specific purpose is.