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Cet album fait partie des albums
Cet album photos contient les sous-albums suivants :
Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 6 (30235221423).jpg - Ser Amantio di Nicolao
Bituminous coal (Vandusen Coal, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 4 (32853777760).jpg - Ser Amantio di Nicolao