
Daily Herald Photograph: Testing harmonics at Enfield factory
1949-05-06
1949-05-06
1964
1985
1952
1955
24 February 1951
1941
circa 1946
circa 1960
1949-05-06
1950
circa 1954
circa 1955
1953
1964-01-21
1930
1949
1950-1960
1949-05-06
circa 1919
1955-1960
1949-05-06
1949-05-06
1955
1953
circa 1971
1912-1920
1921-1930
1949
1919
1948-05-05