Masson Chopper, used for Casein Production c. 1940
1940
1940
circa 1922
1951
1951
1900-1919
1951
1938-10-30
circa 1933-circa 1971
circa 1900
1924
1916-1982
1916-1982
1900-1993
1916-1982
1916-1982
circa 1906
1938-10
1916-1982
1916-1982
1916-1982
1916-1982
1916-1982
1916-1982
1926-1982
1965
1950-1955
1958
1920-1937
1974-1979
1963-10-20
1990
1990
1913
1913
1848
1963
1880
1959-10-30
1929
1904-1908
1931-1933
1990
1990
1990
1990
1990
1990
1990