| 1932 |
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| 1933 |
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| 1934 |
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| 1935 |
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| 1936 |
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| 1937 |
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| 1938 |
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| 1939 |
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| 1940 |
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| 1941 |
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| 1942 |
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| 1943 (tab) |
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| 1944 (tab) |
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| 1945 |
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| 1946 |
(repainted)
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| 1947 |
|
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1948-56
type 1 (tab slots)
|
|
1948-56
type 2 (tab holes) |
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1948-56
type 3 (narrow TEXAS) |
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| 1956-60 |
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| 1961-62 |
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| 1963-68 |
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| 1968-74 |
|
1975
star base |
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1975
bad map base |
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| 1976-89 |
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1989-2002
thin letters |
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1989-2002
wide letters |
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| 2002-2003 |
|
2003-2007
flat |
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2007-pres.
7-digit
meaning of small number unknown
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|
copyright 2004 to 2008 Nick DiFonzo
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