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| 1953 | 1953–present |
| 1954–1973 | 1973–present |
| 1954–1973 | 1973–present |
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1953
1953–present
Alternate version
Alternate inverted version
Alternate version #1
Alternate inverted version #1
Wordmark
1954–1973
1973–present
Miscellaneous
50th Anniversary (2003–2004)