- NLW MS 9946E.
- Ffeil
- [20 cent., first ¼] /
Papers and notes by John Ballinger on the history of the Trevecka Press, with letters by J. H. Davies, Cwrtmawr, John Young Evans, D. G. Goodwin, Evan Davies Jones, M. H. Jones, Sir John Williams, and others.
John Ballinger and others.