When Andy Fields, a businessman from Tiverton, England, bought five sketches for $5 at a garage sale in Las Vegas, he didn't think much of them, despite the seller's claim that the sketches belonged to his aunt who used to babysit Andy Warhol back in the day.

Shockingly, the tall tale turned out to be true — Fields discovered Warhol's signature on the back of a sketch when he went to reframe the picture, which is valued at just over $2 million.