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#V03N26 (1952-January)#V03N26 (1952-January)
- IN#V03N27 (1952-February)
#V03N27 (1952-February)
- IN#V03N28 (1952-March)
#V03N28 (1952-March)
- IN#V03N29 (1952-April)
#V03N29 (1952-April)
- IN#V03N30 (1952-May)
#V03N30 (1952-May)
- IN#V03N31 (1952-June)
#V03N31 (1952-June)
- IN#V03N32 (1952-July)
#V03N32 (1952-July)
- IN#V03N33 (1952-August)
#V03N33 (1952-August)
- IN#V03N34 (1952-September)
#V03N34 (1952-September)
- IN#V03N35 (1952-October)
#V03N35 (1952-October)
- IN#V03N36 (1952-November)
#V03N36 (1952-November)
- IN#V03N37 (1952-December)
#V03N37 (1952-December)