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Mark 1 |
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1894-1897
13/32" diameter. Red paper label. |
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Mark 1.1 |
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1898-1903
7/16" diameter. Dark Brown Stamp. |
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Mark 2 |
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1898-1903
5/8" diameter. Maroon to pale brown decal. |
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Mark 3 |
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1903
9/16" diameter. Red stamp. |
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Mark 4 |
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1903-1905
9/16" diameter. Light brown to dark reddish brown
decal. |
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Mark 5 |
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1905-1910
13/32" diameter. Brown decal. |
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Mark 6 |
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1910-1912
13/32" diameter. Red decal on red square. |
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Mark 7 |
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1912-1918
13/32" diameter. Red or black decal on gold maple
leaf. |
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Mark 8 |
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1918-1919
25/64" diameter. Black decal. |
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Mark 8.1 |
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1918-1919
11/16" diameter. Wide black decal |
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Mark 9 |
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1919-1922
11/16" diameter. Wide black decal. |
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Mark 10 |
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1912-1925
19/32" diameter. Etched gold coin. |
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Mark 11 |
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1925-1930
Etched gold or platinum coat of arms. |
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Mark 12 |
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1925-1930
Small etched gold or platinum escutcheon. |
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Mark 13 |
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1928-1938
Green or gold stamp. |
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Mark 14 |
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1930-1938
Gold stamp. |
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Mark 14.1 |
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1930-1938
X painted trademarks identify factory seconds. |
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Mark 15 |
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1930-1938
Small gold decal escutcheon. |
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Mark 16 |
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1931-1938
Blue Stamp |
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Mark 17 |
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1933-1934
Gold Stamp |
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Mark 18 |
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1938-1994
Gold Stamp |
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Mark 18.1 |
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1938 to present
Scored trademarks identify factory second. |
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Mark 19 |
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1938-1949
Gold Stamp. |
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Mark 20 |
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1916-1917
Hand-painted in gold. Used on glass only. |
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Mark 21 |
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1917-1918
13/32" diameter. Etched on glass. |
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Mark 22 |
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1938 to present
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Mark 23 |
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1994 to present |
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Mark 24 |
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1994 to present
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