Plygell o waith drafft / Folder of draft works Plygell yn cynnwys Aatodiad papur newydd ‘Swansea Yesterday' a teipysgrifau teitledig ‘The Misfortunes of Princess Heledd’, ‘Cyfieithiad’, ‘Cymdeithas Gorawl Dyffryn Tawe', ‘Sgwrs Radio', ‘Loch Shieldaig’, a ‘Beniah mab Jehoiada’ / Newspaper supplement titled ‘Swansea Yesterday' and various titled typescripts undated