I have some football cards at my parents house that are in the same boat. Maybe take a look through them to try to estimate prices and protect the expensive ones. IDK about Marvel cards, but I know there are apps for some other trading cards where you can just scan a picture of the card and get an estimated price based on recent sales.
I have some football cards at my parents house that are in the same boat. Maybe take a look through them to try to estimate prices and protect the expensive ones. IDK about Marvel cards, but I know there are apps for some other trading cards where you can just scan a picture of the card and get an estimated price based on recent sales.