| Rhif Cyf Amg | CYNAN/166 |
| Teitl | Letters and a printed pamphlet on the subject of honouring Cynan with a knighthood to mark the Investiture of the Prince of Wales |
| Disgrifiad | One letter from George Thomas |
| Dyddiad | 20 June 1969 - 13 November 1969 |
| Extent | 7 items |