Invincible Detective Magazine
the same publisher under the same series title of which only two undated examples are known - The Counterfeiters by Rex YoungUnited Kingdom1949–195467 issues
IN#V05N50 (1954-January)#V05N50 (1954-January)
- IN#V05N51 (1954-February)
#V05N51 (1954-February)
- IN#V05N52 (1954-March)
#V05N52 (1954-March)
- IN#V05N53 (1954-April)
#V05N53 (1954-April)
- IN#V05N54 (1954-May)
#V05N54 (1954-May)
- IN#V06N55 (1954-June)
#V06N55 (1954-June)
- IN#V05N56 (1954-July)
#V05N56 (1954-July)
- IN#V05N57 (1954-July)
#V05N57 (1954-July)
- IN#V05N58 (1954-August)
#V05N58 (1954-August)
- IN#V05N59 (1954-August)
#V05N59 (1954-August)
- IN#V05N60 (1954-September)
#V05N60 (1954-September)
- IN#V05N61 (1954-September)
#V05N61 (1954-September)
- IN#V05N62 (1954-October)
#V05N62 (1954-October)
- IN#V05N63 (1954-October)
#V05N63 (1954-October)
- IN#V05N64 (1954-November)
#V05N64 (1954-November)
- IN#V05N65 (1954-November)
#V05N65 (1954-November)
- IN#V05N66 (1954-December)
#V05N66 (1954-December)
- IN#V05N67 (1954-December)
#V05N67 (1954-December)