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Dowlais Dowlais Top Merthyr Morlais RJD . Pre Grouping railway junction around Dowlais Dowlais Top Merthyr Morlais Railway Junction Diagram and Railway Clearing House Author died more than years ago public domain PDold DEFAULTSORT Railways Junctions Diagram Brecknockshire RJD Glamorgan RJD Brecon and Merthyr Railway RJD