[robga]

I see it as a 3d object ala the Menologium Rusticum Colotianum. This way you get the cycle, the split into 4 quarters, and a sequence view per month. You can see an image at https://commons.wikimedia.org/wiki/File:CIL_VI_2305_-_Menolo...

[TeMPOraL]

Oh, so is that the famed Time Cube?