| Reference number | LBO/6/25 |
| Alternative reference number | LBO/6/69 |
| Level | File |
| Title | Copy letter from Jean Cassini, Paris, to Henry Oldenburg |
| Date | 25 March 1673 |
| Description | ' Intimating his Discoveries of two New Planets about Saturne. ' |
| Language | Latin |
| Extent | 1p |
| Format | Manuscript |
| Access status | Open |
| Related records in the catalogue | EL/C1/57 |