Good as New
Cast iron pans are becoming more and more popular these days. While they’re great to cook in, they can be pretty tricky to maintain if you don’t know how. Plus there’s always the danger of rust setting in if you’re not paying attention. Us normal folk would probably throw out a pain that was this rusty.
However, the OP literally gave it a second life and made it look like it was brand new. All she did was soak in the pan in a mix of vinegar and water, then she scrubbed it with steel wool. After that, she seasoned it with oil thrice, baked it, and voila!