| RefNo | AP/64/11/2 |
| Level | Item |
| Title | Unpublished map, 'Sketch showing the method of ventilating the Silkstone pit' by William Galloway |
| Creator | Galloway; Sir; William (1840-1927); Scottish mining engineer; industrialist |
| Date | 1887 |
| Description | A map showing a series of ventilation routes through the Silkstone pit at Altoft's Colliery near Normanton in Yorkshire [England].
Subject: Mining engineering |
| Extent | 1p |
| Format | Map |
| PhysicalDescription | Ink and graphite pencil on paper |
| AccessStatus | Open |