| RefNo | HD/6/8/7/4 |
| Previous numbers | 93HD.9.2 |
| Level | File |
| Title | Copernicus quater-centenary celebrations, 1943 |
| Date | 1942-1943 |
| Description | Correspondence and associated papers re invitation to Dale to chair a commemorative meeting to mark the Copernicus quater-centenary, with copy of his opening remarks; also copy of Dale's BBC radio broadcast to the Copernican celebrations in America |
| Extent | 21 papers |
| Format | Manuscript, typescript and printed documents |
| AccessStatus | Open |
| AccessConditions | OPEN - but with some restrictions |