http://agathe.gr/democracy/the_prytaneis.html
The Prytaneis (Executive Committee) The senators administered their meetings themselves. Each tribal contingent in the Boule served in rotation for a period of 35 or 36 days as the Prytaneis, or Executive ... The design and construction are simple: the round chamber with an inner radius of 8.45 meters had a doorway on the east and six interior supports. The floor was clay. ... On the right, a man reclines on a couch behind a table. A woman sits on a stool nearby, with another male figure on the left.