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    Safleoedd Cysylltiedig
    Rhif Archif
    DS2024_126_029
    Disgrifiad
    Drawing of the Fresnel Lens and pedestal by Julian Whitewright.
    Enw Casgliad
    DS2024_126 - Investigators' Digital Photography
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    1 pdf.
    Cychwynnwr
    Dr Julian Whitewright
    Dyddiad
    16/07/2024