Hi Jimi,
That is a very nice seal you are showing, with an extremely
rare image of a bear. Next to the seal you mention and one in Zacos/Veglery, I haven't seen any. This block
monogram is a perfect example of the reason that cruciform
monograms gained popularity during the 6th and 7th centuries, eventually replacing block
monograms. The
monogram on your seal is open to too many possible readings, and I think it is impossible to solve. Consider the Pi-Chi at the center, yielding L, M, N and X, but not necessarily so.
The letter to left is P, on top there's K and OV
ligate. It probably incorporates the seal owner's name and office/dignity. So if the owner was Eparch, for example,
his personal name would have K and any other letter in the
monogram.
As to this seal belonging to a venator or a beast keeper, I very much doubt that.
Byzantine seals usually belong to the upper
strata of
Byzantine military, bureaucracy and clergy.
Regards
Gert