| Rhif Cyf Amg | BMSS/26056-26065 |
| Teitl | Notebooks and papers of the late Dr. Ifor H. Lloyd of Penmaenmawr |
| Deunydd Cysylltiedig | See also the Lloyd Medals preserved in this Department |
| Acquisition | Deposited through the good offices of Mr. Ian Tully, Science Librarian. |