Dürer's Solid (60°)

For more information see:
[Melencolia I](https://en.wikipedia.org/wiki/Melencolia_I)
[Truncated Triangular Trapezohedron: Dürer's Solid](https://en.wikipedia.org/wiki/Truncated_triangular_trapezohedron#D.C3.BCrer.27s_solid)
[Mathworld: Dürer's Solid](http://mathworld.wolfram.com/DuerersSolid.html)

As the above articles suggest, there is some disagreement around the exact form that Dürer's Solid takes, with a general agreement that the acute angle of the rhomboid face is between 72° an