Recessed underside. Wall thickened slightly above and below. Flat top to rim. Grooved resting surface. Totally glazed. Similar, P 17422 A 20:6 (b) Hesperia, XX, 1951, pl. 66 c, incised on the underside: ... 425-400 B.C.
Black glaze salt cellars ... AMS Horizontal (normal)
Black glazed pottery ... AMS Horizontal (normal)