Occasionally I come across seals for these genii of the hours, but they all seem to be invented or “scryed.” Has there ever been an ancient source of seals for these spirits?
Most Sigil, even from the Ars Goetia can hardly be traced back before the Renaissance Period, and many Sigil we use Today the most are from Chaos Magician, created or scryed.
I would recommend to Work with them, see if they Work and if they does, Does it really matter if they are new or Ancient.
If they Work, they Work
If not, At least you will know,