| Reference number | RBO/2i/64 |
| Alternative reference number | RBO.2i.282 |
| Level | Item |
| Title | 'A Description of the way of making good Gunpowder' by Prince Rupert |
| Date | 22 July 1663 |
| Description | Taking saltpetre, brimstone and coal, instructions are given for preparing gunpowder |
| Language | English |
| Extent | 8 sides |
| Format | Manuscript |
| Digital images | View item on Science in the Making |
| Access status | Open |