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Feb 1948 v6n2 after Timmins |
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Apr 1948 v6n3 after Alejandro |
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Jun 1948 v6n4 after Alejandro |
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Aug 1948 v6n5 after Alejandro |
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Oct 1948 v6n6 after Bonestell |
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Dec 1948 v6n7 after Alejandro |
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Feb 1949 v6n8 after Bonestell |
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Apr 1949 v6n9 after Alejandro |
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Jun 1949 v6n10 after Orban |
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Sep 1949 v6n11 after Santry |
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Oct 1949 v6n12 after Bonestell |