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Cet album photos contient les sous-albums suivants :
MODERN TELEVISION STUDIO OWNED BY THE ISLAND CREEK COAL COMPANY NEAR RICHLANDS, VIRGINIA, WHICH IS USED IN TRAINING... - NARA - 556378.jpg - US National Archives bot
Semi-anthracite coal (Langhorne Coal, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 1 (30481271305).jpg - Ser Amantio di Nicolao
Semi-anthracite coal & mudshale (Price Formation, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 1 (29850748104).jpg - Ser Amantio di Nicolao
Semi-anthracite coal & mudshale (Price Formation, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 2 (29849184293).jpg - Ser Amantio di Nicolao
Semi-anthracite coal (Merrimac Coal, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 4 (30196303710).jpg - Ser Amantio di Nicolao
Geology of the Richmond Basin 1899 Plate XL.jpg - Jstuby