| Reference number | LBO/4/54 |
| Alternative reference number | LBO/4/133 |
| Level | File |
| Title | Copy letter from Francis Vernon, Paris, to Henry Oldenburg |
| Date | 29 November 1670 |
| Description | ' Concerning Monsieur Picarts performances about the measure of the Earth, about the length of a second Pendulum in English measure : about new books lately published etc. ' |
| Extent | 5p |
| Format | Manuscript |
| Access status | Open |