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 Details supplied by Douglas Greene. |   | 
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 Title changed from Keyhole Mystery Magazine. | 
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 Details supplied by Terry Zobeck. |   | 
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 Details taken from Table of Contents. |   | 
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 A short-lived magazine that represented the transitional period between the pulp-style detective fiction of the 1940s and early 1950s, and the more polished and sophisticated crime fiction of the 1960s. | 
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 Title changed from Homicide Detective Story Magagzine. | 
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 Given as Killers Detective Story Magazine at the top of the Table of Contents only. Details taken from Table of Contents. |   | 
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 A fairly traditional mystery/detective/procedural type of publication that sometimes trended toward horror shorts. | 
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 Details supplied by Bill Cissna. |   | 
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 Details taken from Table of Contents. |   | 
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 Details supplied by Bill Cissna. |   |