Ash rubber dam clamp
1910-1940
Hatch's cervix clamp
1870-1914
Cervix clamp
1885-1910
Ash rubber dam clamp
1910-1940
Rubber dam clamp
1888-1910
Ivory rubber dam clamp for bicuspids
1890-1914
Rubber dam clamp
1880-1920
Labial anterior rubber dam clamp
1889-1900
Cervix clamp
1880-1914
Ash rubber dam clamp
Two labial anterior rubber dam clamps
1920-1935
Rubber dam clamp
1890-1914
Four rubber dam cervic clamps
1892-1920
2 rubber dam clamps
1925-1940
Rubber dam clamp
1890-1914