Manuscript and typescript drafts and an annotated printed copy of the libretto; together with stage directions and a synopsis of the plot. A copy of the printed programme of a performance of the work at Aberystwyth in 1922 is also included.

Drafts of the libretto, 1949-1950, and a photocopy of the vocal score of 'Menna', an unpublished opera in three acts, (libretto by Wyn Griffith, music by Arwel Hughes); together with a copy of the Welsh translation by T. H. Parry-Williams for the National Eisteddfod at Ystradgynlais, 1954; a scenario of the opera and radio scripts, 1952-1953; and programmes of performances, 1953-1955, telegrams from well-wishers, and press cuttings.