Stethoscope, with blue cord
2000-2002
2000-2002
1982
1815-1825
1834-1883
1910-1940
1875-1885
1870-1920
1851-1900
1931-1970
1845-1855
1931-1970
1978
1801-1850
1901-2000
1901-2000
1901-2000
1901-2000
1931-1970
1901-2000
1901-2000
1901-2000
1931-1970
1901-1970
1931-1970
1931-1970
1931-1970
late 20th century
1840-1850
1984
1901-2000
1901-2000
1901-2000
late 20th century
1931-1970
1931-1970
circa 1980s
circa 1990s
circa 1950s
circa 1970s
1901-2000
1901-2000
late 20th century
late 20th century
late 20th century
1971-2000
1971-2000
1867-1933
late 20th century
1901-2000