There’s money to be made for old tattered denim. Referred to as “blue gold”, pieces found in old mines can go for as much as six figures. CBS covers a brief history on why they’re so valuable in this video titled Blue Jeans: The Fabric of Freedom. The piece provides interviews with a "blue gold" miner to more familiar names in denim like Levi’s, Imogene + Willie, and Roy denim. Check out how these jeans went from simple workwear to $300 investments. [cbs via tenuedenimes]

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