|Both Pictures: credit Moshe Slav and Slav Inc.|
as the details in the photo below shows, it is set where the Christian symbols of the traditional Staunton set (a cross on top of the king, a bishop's mitre for the bishop) are replaced by Jewish ones -- i.e., the king is crowned with a star of David, the queen with a menorah, the knight becomes a lion (an old symbol of Judea), and the rook has the ten commandments on it. The open hand on the bishop and pawn seems to be a hamsa, a stylized amulet against the evil eye, which is technically not of Jewish origins but very common in Jewish folk art, especially among oriental Jews.
(One can click on the pictures for a larger version).
|An enlarged section of the second picture above.|