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Amgueddfa Cymru – Museum Wales
Photocopies of Taff Vale Railway track diagrams for collieries in the Rhondda Fawr and Rhondda Fach Valleys. Date of originals not known but amendments dated 1890. 'T.V.R. Rhondda Fawr' handwritten on top of front page. 42 pages held together with two metal clasps.
