| RefNo | L&P/6/177/2 |
| Level | Item |
| Title | Plate, 'Hygrometer' by John Coventry |
| Date | 1776 |
| Description | Subject: Physics/Engineering
Read date not given. |
| Extent | 1p |
| Format | Manuscript |
| PhysicalDescription | Pencil illustration on paper |
| AccessStatus | Open |
| RelatedRecord | L&P/6/177 |
| L&P/6/177/1 |