Collared rim.
Pale buff gritty clay; smooth buff slip, much worn inside and out.
ADDENDA Agora XII, no. 1899: Corinthian mortar. Finished Well beneath Stoa gutter. Context ca. 520-490 B.C. Leica, 81-146 ... May-June 1954 ... Black and Plain Pottery | Mortar | Collar Rim | Corinthian