- NLW MS 838B
- Ffeil
- 1761
Rhan oTŷ Coch Manuscripts
A manuscript containing an incomplete interlude which has been identified as a part of 'Mynegiad yr Hen Oesoedd ...' by Thomas Williams, merchant-tailor of Talybont, Caernarvonshire, and others (London, 1761); Thomas Williams's manuscript also contains englynion, carols and triads.