Accessories case for microdensitometer, 1978
1978
1978
1970-1980
1993
1978
1978
1978
1978
1911
1950
1970s
1978
1978
1978
1978
1978
1978
1978
1978
1960
1900-1980
circa 1930
1924
1978
1960
1960-1965
1967-1975
1970-1975
1978
1978
1978
1978
1978
1978