RE: NYC Subway Candy!
I was never much of a candy eater, even as a kid, so what I remember from Subway vending machines as a kid in the 50's was the penny gum. In particular the "fruit" flavor. I'm sure it was never within 50 miles of a piece of fruit, but that's what it was called.
Someone mentioned those unprotected subway fans. A co worker of mine has a scar on his forehead from being wacked by one of those 50+ years ago when he was a kid. Imagine the lawsuits today.