An incomplete and badly mutilated manuscript of the early seventeenth century containing 'cywyddau' by Gruffith ap Ieuan, Ifann Deulwyn, Bedo Aerddrain, Llywelyn ap D'd Fychan, Sion Tudur, Lewis Mon, Dafydd ap Gwilim, etc., and anonymous 'englynion'. The poems are written on the dorse of folded late sixteenth century answers to interrogatories in legal actions.

The papers comprise records relating to court actions concerning the Tredegar estate and the Morgan family.

A diary, with notes on dreams, 1909-1913, by the Reverend J. Myrddin Thomas; a copy of 'Evidence' on a charge of felony, 1835; and press cuttings and miscellaneous notes.