[{"text_idx": "#000006", "text": "Mesur y meysydd \u2013 datblygiad mapio ystadau a\u2019i werth i ddarlunio\u2019r tirwedd hanesyddol."}, {"text_idx": "#000007", "text": "\u201cThou several artists dost employ to show the measure of thy lands\u201d: estate maps and the image of the landowner 1570-1800\nPeter Barber, OBE, Cyn-Bennaeth Mapiau, Llyfrgell Brydeinig"}, {"text_idx": "#000015", "text": "Tocynnau \u00a320 (gan gynnwys cinio bwffe a lluniaeth bore a phrynhawn)"}]