John Koch, Ohio / New York, (1909-1978), Oil on canvas, portrait of a woman in red scarf. Ex. Gertrude Stein Collection (GSTE793), Ex. Dora Koch, wife of the artist. 24” x 20”, framed to 25” x 21”. Possibly a portrait of the artist’s wife, Dora Koch (Zaslavsky), the noted Ukrainian born pianist and teacher at the Manhattan School of Music.