Tooth Key (or Tooth Extractor)

1935–1942

Related works

United States Geological Survey, 1936

United States Geological Survey, 1953

United States Geological Survey, 1938

United States Geological Survey, 1939

United States Geological Survey, 1942

United States Geological Survey, 1936

United States Geological Survey, 1938

United States Geological Survey, 1941

United States Geological Survey, 1936

United States Geological Survey, 1936

United States Geological Survey, 1939

United States Geological Survey, 1941