FYI, you can still get candies like this. There are a couple of places in Chicago, for example, that sell retro candies. One is up in the Ethiopian section of town, so I’ve been there quite a few times, and if you ask them they can tell you where they purchase from. I’ve bought Chuckles from them, so I know they’re still available. They’re just slightly smaller, but still wrapped in cellophane.
That’s how I found out that a candy store started over 100 years ago in Minneapolis by a Lebanese immigrant and his local Swedish wife, Abdallah Candies, makes the closest equivalent of the old Callard and Bowser licorice toffee available. That was like finding the Holy Grail of retro candies!