Homer A. Thompson ... A report on the completing of the exploration of the Heliaia, the Southwest Fountain House and the southwest entrance to the Agora, as well as some work of conservation and path-making in the area ... 24 Jul-19 Aug 1961
Of the two adjacent preserved edges one is smooth, the other has a tongue and groove joint. Traces of hydraulic cement on both faces; but not enough remains to show water deposit. From Klepsydra.
Tan-colored ... 1961
