[JustinD]

Your picture links are broken, so I can't offer much info as I can't see.

However, my opinion on printed price guides is the same as it has been for my entire life. They are fantastic reference material for identification and finding new issues that you may be really interested in. However, the absolute second the prices are printed they are irrelevant. Pricing and values changes daily on most things of interest to any collector. It flows on a market's whim and as the post-war ups and downs of 2016 show, completely fluid. An insurable value can be determined by looking at recent sales or if the card is seldom sold a guide may help. But, in selling, a value is really just what you can sell it for that day.

I have a question on your card however, how do you plan on returning it? Was it bought from a store front or did your uncle buy off eBay? If it was not a store front operation, I would reconsider and either sell it myself or keep it for the sentimental value you have attached. Personally, I do not believe in buyer's remorse as a reason to return an auction purchase and I feel it is unfair to the seller to pressure them to.