I suspect that it was indeed an augery device rather than a pure just-for-fun gaming piece... but those superstitious Romans mixed chance/fate into everything. I'm not sure if the symbols are astrological or alchemical. For astrology, one would expect 12 sides only (I do have a set of astrological dice with one for houses, one for signs....) It would be nice to see all 20 sides! Carolly