[MrMon]

Bad news - writing on the sleeve drops the value quite a bit. When they say PERFECT condition, they mean like it just came from the store. Any mark, especially writing on the cover, drops that value quite a bit.

I suggest you take them all to a used record store just to make sure you don't have something rare (unpeeled Butcher Shot cover), but after they tell you what they're worth, keep a few, sell the rest.

Also, odds are, something else in the box is probably worth more than The Beatles. The Beatles were always popular and sold a lot of records, other artists now regarded as classics, not so much. Try and find a mint condition copy of the original release of The Who's "My Generation" album for example. And 45s with the original sleeves are apparently where the big money is right now, because everyone threw away the sleeves.