Quoted from wolverinetuner:A little late here, but I have a 1971 Gottlieb Roller Coaster, which ipdb used to say was the first pin with wireform ball habitrails, but at last check, it doesn't say that anymore. I don't remember seeing an earlier pin with them. Pretty cool feature on a game of that era.
https://www.ipdb.org/search.pl?ft=habitrails&sortby=name&searchtype=advanced#1921