
Envelope for rubber catheter
1937-1938
1937-1938
1937-1938
1914
1914
1872 (original); 1909 (model)
1914-1918
1925
1928
1915
1938
1924
1936
1935
1921-1930
circa 1920
1927
c.1912
1918
1915
1935
1916
1911
1914
1921-1926
1926
circa 1920
1922-1923
1922-1923
1922-1923
1922-1923
1938
1920
1938
1938
1910-1920
1935
1938
1928
1932
1955; 1830
1930-1931
1913
1914-1918
1915-1925
1934-1935
1932-1936
circa 1938
1931
circa 1930
1910