Based on the company info, (of Allan Candy Company in Aldershot), history would place this around 1943-1961. And here is some interesting information about the Canadian molasses kiss candy (which I had no idea until after I started to research the item): www.taddlecreekmag.com/molasses-the-ultimate-treat
I got this from a stack of ephemera at the Craven Farm holiday show, held in November in Snohomish, Washington (near Seattle) -- from the tables of incredible Halloween product designer Hobgoblin. (Check out this fun fall photoshoot with Hobgoblin , and this ghost created by Hobgoblin). Personally, I was instantly charmed by the simple imagery, (that special character of the witch face), and the classic silhouette color scheme in orange and black.
In retrospect, this was a definite inspiration!