Found something neat last week.  The above is a reproduction of the Seat of Moses, a chair found within a Synagogue where the rabbi would sit and interpret the Torah.  https://www.hmdb.org/m.asp?m=140472 It is mentioned in Matthew 23:2-3. It is not mentioned in Luke 4:20.  But I suspect that this is where Christ ‘sat’ when he made his declaration. “And the eyes of all them that were in the synagogue were fastened on him.”