From a semi-glazed krater?
Incised inside:
Good black glaze inside; none outside.
Another small non-joining fragment added from ostrakon fill giving the ΘΕ of Themistokles and the Ε(?) of Neokleous? ... 25 April 1947 ... ΝΝ ... ΝΝ:76-79/ΝΔ ... Lot ΝΝ 692