NCB/C/PHO/2/2 | Aerial Photographic Survey of the North Derbyshire Area, undertaken for the National Coal Board... | May 1971 | National Coal Board | Derbyshire Record Office |
NCB/C/PHO/2/3 | Aerial Photographic Survey of the North Derbyshire Area, undertaken for the National Coal Board... | Nov 1971 | National Coal Board | Derbyshire Record Office |
NCB/C/PHO/2/4 | Aerial Photographic Survey of the North Derbyshire Area for the eastern and western margins... | Nov 1972 | National Coal Board | Derbyshire Record Office |
NCB/C/PHO/2/5 | Aerial Photographic Survey of the North Derbyshire Area, undertaken for the National Coal Board... | Apr 1973 | National Coal Board | Derbyshire Record Office |
NCB/C/PHO/2/6 | Aerial Photographic Survey of the North Derbyshire Area for the eastern margin, undertaken for... | May 1973 | National Coal Board | Derbyshire Record Office |