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| 1942–present | 1942–1983 | 1953–2002, 2013–present | 1969–1978, 2017–present | 1993–2002 | 2017–present |
1942–present[]
50th Anniversary variant (1992)
1942–1983[]
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Early variant
1953–2002, 2013–present[]
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Purple version
75th anniversary variant (2017)
1993–2002[]
1969–1978, 2017–present[]
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Icon
2017–present[]
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Colored version
The 1969 logo was reintroduced in 2017, with its wordmark replaced with an unmodified treatment of modern digital Helvetica.
