| RefNo | RB/3/6/39 |
| Previous numbers | BL 6, fols. 70-1 |
| Level | Item |
| Title | A Privy Counsellor of Elector of Brandenburg to Samuel Hartlib |
| Date | Late 17th century |
| Description | Scribal copy |
| Language | English |
| Extent | 2 leaves, 4o |
| Format | Manuscript |
| AccessStatus | Open |
| RelatedMaterial | Summarised in 'Correspondence', vol. 6, p. 420. Copy in HP 19/1/9A-B |