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Keywords from Image Description:
cymru wales llyfrgell genedlaethol cymru llyfrgellgenedlaetholcymru national library of wales nationallibraryofwales thomas john thomasjohn negyddion gwydr negyddiongwydr glass negatives glassnegatives schools railroad freight cars railroadfreightcars building blaenau ffestiniog blaenauffestiniog blackandwhite monochrome outdoor