Ralston-Purina Company, 1940 Series
 
Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #1
1
September 1940
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #2
2
November 1940
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #3
3
January 1941
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #4
4
February 1941
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #5
5
January 1941
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #6
6
May 1941
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #7
7
October 1941
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #8
8
February 1942
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Cover for Tom Mix Comics (Ralston-Purina Company, 1940 series) #9
9
March 1942
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