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First Mark
(1863-1890) |
Second Mark
(1891-1926) |
Third Mark
(1926-1946) |
Fourth Mark
(1946-1955) |
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Fifth Mark
(1955-1965) |
Sixth Mark
(1965-1981) |
Seventh Mark
(1981-1992) |
Eighth Mark
(Jan. 1993-Dec. 1998) |
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Ninth Mark
(Jan. 1997-Dec. 1999) |
Tenth Mark
(2000) |
Eleventh Mark
(2001 to Present) |
Collectors' Society Mark
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