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 Details taken from eBay listing.  | 
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 Mislabelled Vol. 16 No. 2 instead of Vol. 16 No. 3.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details supplied by Denny Lien from the copy at Pulp Magazines Project.  | 
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 Details taken from The Pulp Magazine Index by Len Robbins.  | 
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 Details supplied by Monte Herridge.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details taken from Table of Contents.  | 
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 Details supplied by Al Tonik.  | 
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 Details taken from Table of Contents.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details supplied by Al Tonik.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details taken from library catalogue of the National Cowboy Museum.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Al Tonik.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Al Tonik.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Al Tonik.  | 
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 Details supplied by Rick Hall.  | 
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 Details supplied by Al Tonik.  | 
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 Details supplied by Rick Hall.  | 
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 Details supplied by Monte Herridge.  | 
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 Details supplied by Al Tonik.  | 
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 Details supplied by James Reasoner & Sai Shankar.  | 
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 Details supplied by Monte Herridge.  | 
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 Details taken from Table of Contents.  | 
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 Details taken from The Pulp Magazine Index by Len Robbins.  | 
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 Details supplied by Sai Shankar.  | 
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 Details supplied by Monte Herridge.  | 
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 Details taken from The Pulp Magazine Index by Len Robbins.  | 
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 One story was announced for the unpublished June 1953 issue.  | 
  
 Identical to the UK issue with the same number, except for minor changes to the cover.  | 
  
 Details supplied by Rick Hall.  | 
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 Identical contents to the US issue of the same date. Details taken from Table of Contents.  | 
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 Details supplied by Monte Herridge.  | 
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 this is clearly the US edition printed in Canada. Details supplied by Rick Hall.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Details supplied by Monte Herridge.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Identical contents to the US issue of the same date. Details taken from eBay listing.  | 
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 Details taken from Table of Contents. Reprint of the April 1948 (US) issue.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 Details taken from eBay listing.  | 
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 Issue partially indexed - probably identical contents to the US issue of the same date.  | 
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 This issue is generally dated “Spring 1945” but this seems unlikely as it reprints a story from the January 1946 (US) issue. Issue partially indexed.  | 
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 Partial reprint of the March 1946 (US) issue.  | 
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 Issue partially indexed - probably a partial reprint of the March 1951 (US) issue.  | 
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 Details taken from Table of Contents.  | 
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 Partial reprint of the April 1952 (US) issue.  | 
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