| Reference number | LBO/2/87 |
| Alternative reference number | LBO/2/231 |
| Level | File |
| Title | Copy letter from Henry Oldenburg, London, to Franciscus Slusius |
| Date | 19 June 1668 |
| Description | 'Concerning and containing My Lord Brouncker his squaring of the Hyperbola ' |
| Language | Latin |
| Extent | 3p |
| Format | Manuscript |
| Access status | Open |