Balance for measuring the pressure weight of pick-up arms
1965-1975
1965-1975
1944
1965-1975
1930-1950
1938
1938
1954
1971
1960
1971
circa 1977
circa 1989
circa 1989
circa 1989
circa 1930
1930-1935
1938
1977
1973
circa 1989
circa 1989
circa 1989
circa 1989
circa 1989
1960
1965-1970
1965-1970
1960-1979
circa 1945
circa 1945
1935
1935
1935
1935
1935