LIBROS DEL AUTOR: ruth shaffrey

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  • Grinding and Milling
    Ruth Shaffrey
    This work investigates the use of Old Red Sandstone from South Wales, Gloucestershire, Avon and Somerset during the Roman period, for rotary querns. It is based on detailed petrographic studies of these rocks at both microscopic and macroscopic levels to define practical keys which allow types of Old Red Sandstone, and hence artefacts made from it, to be identified and provenan...
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