"Bert Heller (30 March 1912 – 29 April 1970) was a German painter and illustrator who for two years in the later 1950s served as Rector ...
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of the Fine Arts Academy in the Weissensee district of Berlin. Heller‘s reputation as an artist is based primarily on his portraits, water colours and posters." - (en.wikipedia.org 29.01.2020)