| Reference number | RBO/7/41 |
| Alternative reference number | RBO.7.79 |
| Level | Item |
| Title | Copy of a letter from John Philip Wurzelbaur to Edmond Halley |
| Date | 15 March 1688 |
| Description | Concerning observations of an unusual twilight |
| Language | Latin |
| Extent | 2 sides |
| Format | Manuscript |
| Digital images | View item on Science in the Making |
| Access status | Open |