| Reference number | LBO/6/26 |
| Alternative reference number | LBO/6/69 |
| Level | File |
| Title | Copy letter from Henry Oldenburg, London, to Jean Cassini |
| Date | 26 March 1673 |
| Description | ' Thanks to Signor Cassini for having sent to the Royal Society the Description of his discovery of two new planets about Saturn. ' |
| Language | Latin |
| Extent | 2p |
| Format | Manuscript |
| Access status | Open |
| Related records in the catalogue | EL/C1/57 |