| RefNo | RB/3/7/8 |
| Previous numbers | BL 7, no. 8 |
| Level | Item |
| Title | John Beale to [Samuel Hartlib] |
| Date | 9 April 1658 |
| Description | Scribal copy |
| Language | English |
| Extent | 3 leaves (1 conjugate pair, and 1 single leaf), 4o |
| Format | Manuscript |
| AccessStatus | Open |
| RelatedMaterial | Summarised in 'Correspondence', vol. 6, p. 421. See HP 52/73 and 52/137A-140B |