Microfilm copies, produced between 1980 and 1984, of the bulk of manuscripts held at Cardiff Central Library, commonly referred to as the 'Cardiff MSS'. The manuscripts are wide-ranging in date and content, from the 12th century manuscript 'Vita Sancti Winwaloi; Vitae Sanctorum', to twentieth-century diaries, letters, minute books and scrapbooks. The Cardiff MSS include one of the oldest and most important of Welsh manuscripts, namely the 13th century Book of Aneirin ('Llyfr Aneirin') containing eulogies for soldiers of the Gododdin tribe who died in a battle at Catterick, Yorkshire, around the year 600. Notable collections are included, such as the Tonn, Havod, Cadrawd, Scott, Bradley and Wooding groups of manuscripts, as well as a large number of individual items of literary, religious, philological, topographical, local, and genealogical interest. Manuscripts described by Gwenogvryn Evans in Reports on Manuscripts in the Welsh Language (Royal Commission on Historical Manuscripts , London, 1898-1910), ii, pp. 91-345, 783-93 (with designated RMWL reference numbers), together with those manuscripts described by N. R. Ker in Medieval Manuscripts in British Libraries (Oxford, 1969-2002) (with designated MMBL reference numbers), are included, although catalogue entries do not usually contain descriptions of their content.