For a real trip down memory lane go to
Amazon and look for a candy company selling the old-fashioned stuff from each decade. I think they go back to the 1940's.
I've had that in my cart more than once -- but I chicken out because I hate having the sticky stuff pull my fillings out.
Once you get the name of that gum, check out The Vermont Country Store. If they don't have it (and I don't think they do) they might just track it down and get it.
I still have Halloween candy......