Agora Object: Agora XII, no. 481
Dimensions:   H. to rim 0.049; diam. of rim 0.16.
Chronology:   Ca. 425 B.C.
Deposit:   E 13:1
Published Number:   AV 12.481
References:   Object: P 6518
Spreading ring foot, lipped. Reserved: center of underside with three circles and dot. Glaze peeled in parts.

The following look to be similar: New York 41.162.223 (ex Gallatin): CVA (8) Gallatin pl. 62(410) 4; Reading 60.1.3.