| RefNo | HD/6/8/3/1/17 |
| Previous numbers | 93HD.7.11.17 |
| Level | Item |
| Title | Copy Dale to Establishment Office, National Physical Laboratory |
| Date | 4 February 1944 |
| Description | Acknowledging receipt of a new pass to the Laboratory grounds issued to replace the one he lost |
| Extent | 1p |
| Format | Carbon copy |
| AccessStatus | Open |
| AccessConditions | OPEN - but with some restrictions |