For the type Study guide, click here

Type 1      1867-1869
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Type 2      1869-1872

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Type 3      1872-1873

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Type 4      1874-1884

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Type 5      1885-1888

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Type 6      1888-1892

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Type 7      1893-1899

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Type 8      1900-1902

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Type 9      1902-1907

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Type 10      1907-1909

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Type 11      1910-1918

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Note the type 11 and type 12 base is the same.

Type 12      1919-1924

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Type 13      1925-1928

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Type 14      1929-1930

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Type 15      1931-1932

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Type 16      1933-1941

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Type 17      1942-1945

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Type 18      1946-1947

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Type 19      1948-1961

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Type 20      1962-1967

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