What would survive over 100 years?

I'm writing a book and a lot of it takes place 100 years after the collapse of a society (modern/future). There are few people left on the surface and some lived in bunkers(think fallout minus the radiation). What sort of things might I expect to find after that amount of time? Like, right now the characters... show more I'm writing a book and a lot of it takes place 100 years after the collapse of a society (modern/future). There are few people left on the surface and some lived in bunkers(think fallout minus the radiation). What sort of things might I expect to find after that amount of time? Like, right now the characters are walking around in Texas heading toward Florida. What sort of items, salvageable or otherwise, might they find in traincars, shops, houses, etc. Thanks for the help.
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