NCB/A/JGW/5/2
Correspondence of J. and G. Wells Limited on proposed Westthorpe Pit Head Baths
1944-1947
J and G Wells Limited
Derbyshire Record Office
NCB/A/JGW/6
Tinsley Park Colliery plans
[early 20th cent]
NCB/A/JGW/6/1
Plan of Tinsley Park Colliery, showing the workings of the Parkgate Seam
NCB/A/JGW/6/2
Plan of Tinsley Park Colliery, showing the workings of the High Hazel Seam and Thin Coal Seam
Bryan Donkin Company Ltd of Chesterfield, engineering firm