How do I tell what a pair of Nike shoes purchased in 1985 are worth today?

I have a pair of 7 1/2 womens Nike shoes purchased in 1985 with original receipt dated in 1985. These shoes are in MINT condition and have only been tried on 2 times and still have the box, but it is kind of beat up.


I am just wondering on how to find what they are worth today? Any suggestions would be greatly helpful.


Thank You

How do I tell what a pair of Nike shoes purchased in 1985 are worth today?
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