A mark read from three angles
The impression on the base proved clearer in reflected light than in direct light.
A mark on faience is often impressed rather than printed, and under direct light it merges with the glaze. Doroshenko photographed the base three times, tilting the source each time.
It became legible at about fifteen degrees: the shadow in the depression gave the outline. In the case the base is shown on a mirror, with a side lamp at the same angle.
