Lone Sole / Looking for a Mate

This A-series candy card has been in my Lone Sole binder for a while now....a Yokozuna Yoshibayama caramel card (キャラメル　カード) from the Morinaga （森永）company...at least I think it is Morinaga as I haven't seen this particular company mark used before.  I haven't seen any other cards similar to this in all the years I have been collecting as well so this set must be quite rare.  It is from somewhere between 1954 and 1957 given that Yoshibayama was a Yokozuna during those years.  It also appears like it might have been cut out of a box of caramels, but not sure.  If anyone has any info, it would be much appreciated.