Charcoal a. pen a. ink drawing, 34,5 x 52 cm, lo. ri. sign. Albert Birkle, lo. le. indistinctly inscribed, min. dam., framed under glass. - German-Austrian painter, draughtsman a. graphic artist. B. studied at the Berlin academy 1920-25, in 1923 he joined the Berlin secession. He turned down a job offer a professor in Königsberg in 1926 because of many commissions he received. B. was the German exponent of the Venice biennale in 1936, only one year later the same paintings were seized as 'degenerate' by the Nazis. He had settled in Salzburg in 1932 a. was naturalized in Austria in 1946. - Mus.: Berlin (Nat.-Gal.), Vienna (Albertina), Salzburg, Düsseldorf, Milwaukee a. others. - Lit.: Saur, Vollmer a. others.