{"product_id":"9781911038207","title":"Tredegar Company, The - One of the South Wales Coalfield's 'Big Three'","description":"Yn ystod y 19eg ganrif, roedd gwaith haearn Tredegar yn weithredol ym mlaenau Cwm Sirhywi. Roedd yn cyflenwi haearn rheilffordd i weddill y byd. Dewisodd Isambard Kingdom Brunel lo Tredegar i yrru ei long ager arloesol, y 'Great Western', ac yn dilyn 1840, datblygodd oes aur gwerthu glo i yrru injanau stêm. Cofnod darluniadol o'r hanes.","brand":"Leslie M. Shore","offers":[{"title":"Default Title","offer_id":51695445016889,"sku":"9781911038207","price":25.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0914\/7813\/1001\/files\/9781911038207.jpg?v=1770799255","url":"https:\/\/www.ffolio.cymru\/products\/9781911038207","provider":"ffolio.cymru","version":"1.0","type":"link"}