[Mercury miners saluting, Almadén, Spain]

[Worker emptying a bag of mercury, Almaden, Spain]

[Worker emptying a bag of mercury, Almaden, Spain]

[Miner crouching and examining mercury, Almaden, Spain]

[Miner crouching and examining the mercury, Almaden, Spain]

[Small mercury tanks ready for shipment, Almaden, Spain]

[Miners doing the Republican salute, Almaden, Spain]

[Miners descending into the pit, Almaden, Spain]