''LISTETTA'' KPM QUALITY PLAQUE AFTER EUGEN VON BLAAS: Signed ''Listetta'' after E. V. Blaas verso. Semblance of a blue impressed Heutschenreuther (?) mark. 6 1/4'' x 4 1/4'', framed 8 1/4'' h. x 6 1/4''.