
Corrosion of lead, containing copper and iron
before 1889
before 1889
1915
1919
1915
1915
1914
before 1889
1914
1914
1914
1914
1914
1914
1914
1915
1915
1914
1914
1914
1914
1915
1914
1914
1915
1914
1915
1915
1915
1915
1915
1915
1914
1914
1914
1914
1914
1914
1914
1914
1914
1914
1914
1913
1914
1914
1914
1914
1914
1915