Select photo 1 Erwin and his family, 1892 2 As a student, 1894 3 At Predilsattel, 1914 4 At the naval canon 5 Portrait after war 6 A. Bertel in the yard 7 Wedding reception, 1920 8 Rest Cure, 1922 9 Lake of Zurich, ca. 1925 10 Sausage-Party, 1933 11 Leisure in Gent, 1939 12 Beach La Panne, 1939 13 Seefeld, 1959 14 Forum Alpbach, 1951 15 With Lise Meitner 16 Univ. Vienna, 1956