- NLW MS 21346A.
- Ffeil
- [c.1810]-[1834].
Rhan oIolo Morganwg and Taliesin ab Iolo manuscripts and papers
'Salmau Iolo Morganwg, Rhann I, yn adgyweiriedig, sef y rhai na chymmerwyd i'r Llyfr Argraphedig [i.e., Salmau yr Eglwys yn yr Anialwch, Cyfrol I (Merthyr Tydfil, 1812)], Hyd Rif [CXXX].' This volume was apparently meant to replace Part I in the series numbered 48-57 (NLW MSS 21336-45A) (see note inside front cover). The numbers on a slip of paper in the autograph of Taliesin Williams, continued inside the back cover, refer to the Salmau from this volume which were included in Cyfrol II (1834).