1929
Marvin Breckinridge Patterson, 1937
Franz Weiser, 1929
Marvin Breckinridge Patterson, 1935
OHC Kicken Gallery Berlin, 1923
OHC Kicken Gallery Berlin, 1920
Richard and Judith Smooke, 1906
Marvin Breckinridge Patterson, 1929
Marvin Breckinridge Patterson, 1931
Richard and Judith Smooke, 1930
Richard and Judith Smooke, 1854
