Adysgrifau 'Manoethwy',
Adysgrifau 'Manoethwy',
Letters of John Jones (Tegid)
Letters of John Jones (Tegid)
Transcripts of letters,
Transcripts of letters,
Teulu Darowen (3)
Teulu Darowen (3)
Autograph letters,
Autograph letters,
Autograph letters,
Autograph letters,
Miscellaneous letters
Miscellaneous letters
Llyfr barddoniaeth 'Gwilym Cowlyd',
Llyfr barddoniaeth 'Gwilym Cowlyd',
Letters R-W (P. B. Williams)
Letters R-W (P. B. Williams)
Minute book of Cymmrodorion Society in Powys, etc.
Minute book of Cymmrodorion Society in Powys, etc.