Llyfr Achau Cyf. VI,
Llyfr Achau Cyf. VI,
Waste book of Eben Fardd,
Waste book of Eben Fardd,
Llawysgrif Eben Fardd,
Llawysgrif Eben Fardd,
Gwaith 'Owain Gwyrfai',
Gwaith 'Owain Gwyrfai',
Gwaith 'Nicander',
Gwaith 'Nicander',
Iago Fardd's MSS,
Iago Fardd's MSS,
Achau a mân gofion,
Achau a mân gofion,
Letters and papers relating to the Reverend Peter Williams,
Letters and papers relating to the Reverend Peter Williams,
Blodau'r Awen ...
Blodau'r Awen ...
Minute book of Cymmrodorion Society in Powys, etc.
Minute book of Cymmrodorion Society in Powys, etc.
Miscellaneous papers and letters,
Miscellaneous papers and letters,
Awdl,
Awdl,
Autograph letters,
Autograph letters,
Transcripts by Mary Richards, etc.
Transcripts by Mary Richards, etc.
Transcripts by Mary Richards,
Transcripts by Mary Richards,
Commonplace book of Ieuan Glan Geirionydd,
Commonplace book of Ieuan Glan Geirionydd,
Letters of Major Nanney, etc.
Letters of Major Nanney, etc.
Barddoniaeth a hen ddywediadau,
Barddoniaeth a hen ddywediadau,
Autobiographical material of 'Dic Aberdaron',
Autobiographical material of 'Dic Aberdaron',
Letters of David Williams, Castell Deudraeth,
Letters of David Williams, Castell Deudraeth,
