I'm currently studying Martin Gardner's 1968 repackaging of two of Henry Ernest Dudeney's collections: "536 Puzzles & Curious Problems", and trying to track down all the references in his editorial footnotes.
In his discussion of the "Four Fours" problem (Answers section of Puzzle 109 in the above collection), he references the magazine "Recreational Mathematics Magazine", specifically issue 14 from 1964.
I have managed to track down a copy of this specific issue of this magazine on sale via Amazon (although unfortunately not shipping to this locale), and also a copy of Issue 13. Nice and all, but what I am having difficulty tracking down is any publication details of the magazine itself: between what dates was it published, so on and so forth, and particularly (the holy grail) where I might be able to access its contents online -- or at least a list of its contents.
Does anybody have any concrete information on this magazine?