Tlysau yr hen oesoedd
Subtitle: adargraffiad ffacsimili arbennig i ddathlu Eisteddfod Genedlaethol Ynys Môn 1999 = special facsimile reprint to celebrate The National Eisteddfod of Wales, Isle of Anglesey.
Publisher: Adran Hamdden a Threftadaeth Cyngor Sir Ynys Môn
Published: 1999
Place of publication: Llangefni
Language: wel
Number of pages: 16
Notes: Cyhoeddwyd yn wreiddiol = Originally published: Caergybi; Lewis Morris, 1735.

Reference of original: Libri Walliae no.3663.