Karel Appel (Amsterdam 1921 - Zurigo 2006) "Untitled (Chelsea People Series)" 1971 oil on canvas cm 77x38 Signed and dated 71 lower left Provenance Martha Jackson Gallery, New York (n.13505) Galleria d'arte Sianesi, Milan Private collection, Turin Exhibition "Karel Appel's The Chelsea People. Nineteen oils on canvas - 1971" Martha Jackson Gallery, New York, 16 June -16 July 1971, ill. IT "Untitled (Chelsea People Series)" 1971 olio su tela cm 77x38 Firmato e datato 71 in basso a sinistra Provenienza Martha Jackson Gallery, New York (n.13505) Galleria d'Arte Sianesi, Milano Collezione privata, Torino Esposizioni "Karel Appel's The Chelsea People. Nineteen oils on canvas - 1971" Martha Jackson Gallery, New York, 16 giugno - 16 luglio 1971, ill. in catalogo