September 1, 1973
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September 2, 1973
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September 3, 1973
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September 4, 1973
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September 5, 1973
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September 6, 1973
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September 7, 1973
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September 8, 1973
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September 9, 1973
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September 10, 1973
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September 11, 1973 (This strip is adapted in the 1988 TV special, Snoopy!!! The Musical)
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September 12, 1973
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September 13, 1973
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September 14, 1973
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September 15, 1973
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September 16, 1973
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September 17, 1973
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September 18, 1973
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September 19, 1973
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September 20, 1973
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September 21, 1973 (This strip would be used in the 2014 French TV series Peanuts as a bumper and also would be adapted as well as the following strip in the episode Snoopy's Cat Fight from The Charlie Brown and Snoopy Show)
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September 22, 1973
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September 23, 1973
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September 24, 1973 (Beginning of a storyline that was later adapted as the segment "Peppermint Patty" of The Charlie Brown and Snoopy Show episode "Lucy vs. the World")
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September 25, 1973
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September 26, 1973
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September 27, 1973
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September 28, 1973
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September 29, 1973
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September 30, 1973
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← August 1973 October 1973 →
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