First interpretation: figurine fragment.
Perhaps from the body of a draped figure, with drapery gathered tight in horizontal folds around the waist (?).
Traces of white paint, and red on the white. Red ... 19 February 1935
Black figured lip cup fragment; a senseless inscription painted in black glaze in the handle band. Red fill. B' building fills, B- fill to north. Leica ... 19 February 1935