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    LevelDescriptionArchiveDateArchive Number
    LevelGroupDescriptionMiscellaneous produced as part of the Brecon Forest Tramroad publication. Includes notes on gradient profiles and gradient diagrams; floor plan of Glan Usk House; Reconstruction of water-powered instillations at Clydach and several sketches including of Castell Du plate way; Granwen Depot; Ysnysgedwyn Incline; Penclawdd Bridge; Twyn-y-Ffald Limekilns; Banwen Weighbridge hut and Gwaunclawdd Bridge'ArchiveBFT - RCAHMW Brecon Forest Tramroad Publication CollectionDateArchive Number2023-09-05_7178
    LevelGroupDescriptionOrdnance Survey maps with annotated overlays, published in "The Brecon Forest Tramroads", S.R. Hughes, 1990.ArchiveBFT - RCAHMW Brecon Forest Tramroad Publication CollectionDateArchive Number2023-08-23_1091
    LevelGroupDescriptionCollection of annotated maps, mostly from the Ordnance Survey, collated and/or produced as part of the Brecon Forest Tramroad publication, compiled by S.R. Hughes/IA branch.ArchiveBFT - RCAHMW Brecon Forest Tramroad Publication CollectionDateArchive Number2023-08-23_1092