| Reference Number | DE/6/15/12/5 |
| Title | Section Plan of Working Arrangement of Recording Instrument used for Determining Level of Water in the Borehole at Blackhill Quarry [Wombourne?] |
| Description | Uncoloured. Measurements in feet and inches. A. E. Freeman & Company, Electrical Engineers, Dudley.
Surveyor: Not known
Scale: Not given |
| Date | 15 Apr - 6 May 1941 |
| Physical Description | [Tracing paper. 30cm x 44cm] |
| AccessStatus | Open |
| Level | Item |