The oldest picture
Patent clerk
1920
1912
1931
Radio talk
Barcelona, 1923
Berlin 1922
Haberlandstraße
Berlin
Berlin
Santa Barbara, 1933
Violin, 1941
Violin, 1929
Princeton
Vacation
Sailing
early 1940s
Princeton,1937
Princeton,1937
Princeton
Winter
The last blackboard
1947
1945
1950
