| RefNo | HD/6/6/1/231 |
| Previous numbers | 93HD.5.3.231 |
| Level | Item |
| Title | Professor Sir Geoffrey Jefferson, Manchester, to Dale |
| Date | 21 November 1959 |
| Description | Sending a certificate for Russell Brock, a leading heart and lung surgeon, asking if Dale can think of one more person to sign it |
| Extent | 1p |
| Format | Manuscript |
| AccessStatus | Open |
| AccessConditions | OPEN - but with some restrictions |