Ffeil NLW MS 23961E. - Mona Vetusta.

A volume, [1850]-1855 (watermarks 1849, 1850), containing pen, ink and wash drawings of ancient buildings and archaeological remains in Anglesey with accompanying text. The volume appears to be the work of Helen Spode (née Heywood), and also her husband, Josiah Spode of Hawkesyard Hall, Staffordshire, and of Plas Gwyn and Beaumaris.
The layout consists typically of a page of text in black and red ink and an illuminated initial in Celtic style, with a drawing on the facing page (thirty-five in total); additional drawings often form vignettes in the text. A few of the drawings are initialled 'H.S.' (ff. 12, 31 verso, 39, 41) and 'J.S.' (ff. 10, 33). Subjects include various cromlechs, churches and castles; the majority are in the east of the island, including Beaumaris (ff. 1 verso-13) and Penmon Priory (ff. 14 verso-26). The volume also includes a single parchment leaf (f. 67) containing a copy of the illumination on f. 8 verso of the Bangor Pontifical (now in Bangor University, Welsh Library, Special Collections, Cathedral Collection).