| Reference number | LBO/4/71 |
| Alternative reference number | LBO/4/185 |
| Level | File |
| Title | Copy letter from Henry Oldenburg, London, to Francis Willughby and Mr Wray |
| Date | 21 January 1671 |
| Description | ' An Answer of thanks to Mr Willughby and Mr Wray for their late communications. ' |
| Extent | 2p |
| Format | Manuscript |
| Access status | Open |