This was acquired from an estate of an Israeli archaeologist . . . about him, I know little or nothing.
This vessel seems very primitive to be a Greek or Roman Burial vessel. It is more likely to be an ancient funerary vessel placed in the tomb of some semi-prominent Middle East grave site occupant. . . along with other personal and relevant artifacts.
I have priced it as “unknown” but certainly ancient. Still a great conversation piece for those who have a special place for an antiquity . . . coming from an expert in the field.
Be your own archaeological researcher and find your own answer to the mystery of this piece! How fun!