
Photo negatives showing insertion of rabbit ear chambers
1956
1956
1995
1996
1938-1950
1997
1955-1970
1925-1940
1903
1935-1950
1887
1887
1887
1887
1887
1887
1887
1975
1887
1887
1930-1940
1920-1930
1917
1952-1962
1903
1935-11
1942
1971
1887