True Frontier (1967 Candar Publishing Co., Inc./Major Magazines, Inc.) comic books 1971
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Published Jan 1971 by Major Magazines.$2.50
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Published Mar 1971 by Major Magazines.$2.50
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Published Jul 1971 by Major Magazines.$2.50
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Published Sep 1971 by Major Magazines.$4.80
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Published Dec 1971 by Major Magazines.$4.80