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 Details supplied by Jerry McMaster. |   | 
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 Mercury Mystery Book-Magazine was the continuation of a long-running series of full-length (and condensed) mystery novels published in a digest-sized, paperback format, under the title of Mercury Mystery since March 1940. It ran for 23 issues (starting with #210) before merging with Bestseller Mystery Magazine. | 
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 Details taken from Table of Contents. |   | 
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 Details supplied by Richard Fidczuk. |   | 
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 Details taken from Table of Contents. |   | 
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 Cover artist listed as Solovioff in the Table of Contents, but the cover is signed by Dick Shelton. |   | 
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 Details supplied by Jerry Boyajian. |   | 
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 Details supplied by Jerry Boyajian. |   | 
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 Details taken from Table of Contents. |   | 
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 Dated April on the cover. |   | 
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