Who was GM Co?
  Sane Halloween Observer    A well-known admirer of vintage Halloween currently credits a series of candy containers, pull-toys and rockers (constructed of paper-laminated cardboard) to  General Merchandise Company  of the 1940s-1950s. Determination appears based on the bottom abbreviation of  G.M. CO. , but what is the historical record of this company and of its product output?     As of this writing, I find no iteration of a plausible General Merchandise Company referred to as G.M. Co. (for example   -  The Treasury  that was at one time named General Merchandise Company has no evident markings of G.M. Co. on its catalogs). As well, other than a few known series of holiday containers (for Easter , Valentines Day , Halloween see below marked G.M. Co), I find no other products via an internet search. Note that research is made difficult because  general merchandise  is a common term of business categorization such as  dry goods ; ...