[Dead bodies, Battle of Teruel, Spain]

[Republican soldiers in trenches, Teruel, Spain]

[Republican soldiers in trenches, Teruel, Spain]

[Group of seated civilians,Teruel, Spain]

[Small mercury tanks, Almadén, Spain]

[Miners descending into the pit, Almaden, Spain]

[Mercury miners saluting, Almadén, Spain]

[Miners descending into the pit, Almaden, Spain]