From the wall of a coarse heavy pot, amphora?
Incised outside:
Micaceous clay; glaze band outside. Sand under red gravelly fill. 4376 Leica, HAT 49-58 ... 29 April 1947
Heavy round handle.
Traces of red on top of handle near joint.
Circular stamp with eagle; letters around. Dip: traces of red on top of hdl near joint* Cistern; fill 3; box 11. Σωτήριχος
eagle
(in O) ... 29 April 1947