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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6374103
    Disgrifiad
    Drawing showing 'Evolutionary tree of tramplates': Figure 161. The drawing is entitled 'Methods of Fixing Plate Rails 1787-1820'.
    Enw Casgliad
    ELR - Early Limestone Railways Drawings
    Cyfrwng
    1 file. Graphic.
    Cychwynnwr
    Michael Blackmore, John Van Laun
    Dyddiad
    c. 1997 to 1999