Agora Object: Agora XII, no. 1324
Chronology:   Ca. 550 B.C.
Deposit:   J 18:4-L
Published Number:   AV 12.1324
References:   Object: P 17490
Round edge, concave upper surface. Flat bottom reserved. Grooved circle at center of upper surface.

Perhaps a little later, P 1236 G 6:3-L Hesperia, VII, 1938, p. 403, fig. 39, 38.